diff --git a/Config.in b/Config.in
index 2ed88892a..8e751530c 100644
--- a/Config.in
+++ b/Config.in
@@ -521,7 +521,7 @@ config EFENCE
 endchoice
 
 ### config PARSE
-### 	bool "Uniform config file parser debugging applet: parse"
+###	bool "Uniform config file parser debugging applet: parse"
 
 endmenu
 
diff --git a/applets/usage_compressed b/applets/usage_compressed
index a299ecdf1..8d343529d 100755
--- a/applets/usage_compressed
+++ b/applets/usage_compressed
@@ -21,9 +21,9 @@ echo 'static const char packed_usage[] ALIGN1 = {'
 ##
 ## "$loc/usage" | bzip2 -1 | od -v -x \
 ## | $SED -e 's/^[^ ]*//' \
-## 	-e 's/ //g' \
-## 	-e '/^$/d' \
-## 	-e 's/\(..\)\(..\)/0x\2,0x\1,/g'
+##	-e 's/ //g' \
+##	-e '/^$/d' \
+##	-e 's/\(..\)\(..\)/0x\2,0x\1,/g'
 
 "$loc/usage" | bzip2 -1 | $DD bs=2 skip=1 2>/dev/null | od -v -t x1 \
 | $SED -e 's/^[^ ]*//' \
diff --git a/editors/patch_toybox.c b/editors/patch_toybox.c
index f1e0de6cd..0e5c070e2 100644
--- a/editors/patch_toybox.c
+++ b/editors/patch_toybox.c
@@ -491,7 +491,7 @@ int patch_main(int argc UNUSED_PARAM, char **argv)
 				int oldsum, newsum, del = 0;
 				char *s, *name;
 
- 				oldsum = oldline + oldlen;
+				oldsum = oldline + oldlen;
 				newsum = newline + newlen;
 
 				name = reverse ? oldname : newname;
diff --git a/examples/var_service/dhcp_if/convert2ipconf b/examples/var_service/dhcp_if/convert2ipconf
index 114ab0555..62a288ebf 100755
--- a/examples/var_service/dhcp_if/convert2ipconf
+++ b/examples/var_service/dhcp_if/convert2ipconf
@@ -28,7 +28,7 @@ test "$ip" || exit 1
 
 {
 echo "let cfg=cfg+1"
-test "$interface" 	&& echo "if[\$cfg]='$interface'"
+test "$interface"	&& echo "if[\$cfg]='$interface'"
 test "$ip"		&& echo "ip[\$cfg]='$ip'"
 test "$ip" && test "$mask" \
 			&& echo "ipmask[\$cfg]='$ip/$mask'"
diff --git a/mailutils/mime.c b/mailutils/mime.c
index 17d0f9d80..125ca01dd 100644
--- a/mailutils/mime.c
+++ b/mailutils/mime.c
@@ -369,7 +369,7 @@ static int parse(const char *boundary, char **argv)
 			}
 		}
  next:
- 		free(line);
+		free(line);
 	}
 
 //bb_info_msg("ENDPARSE[%s]", boundary);
diff --git a/networking/ftpd.c b/networking/ftpd.c
index fdc6f5e45..b7d5b20b1 100644
--- a/networking/ftpd.c
+++ b/networking/ftpd.c
@@ -716,7 +716,7 @@ handle_dir_common(int opts)
 		/* STAT <filename> */
 		cmdio_write_raw(STR(FTP_STATFILE_OK)"-File status:\r\n");
 		while (1) {
-    			line = xmalloc_fgetline(ls_fp);
+			line = xmalloc_fgetline(ls_fp);
 			if (!line)
 				break;
 			/* Hack: 0 results in no status at all */
@@ -731,7 +731,7 @@ handle_dir_common(int opts)
 		int remote_fd = get_remote_transfer_fd(" Directory listing");
 		if (remote_fd >= 0) {
 			while (1) {
-    				line = xmalloc_fgetline(ls_fp);
+				line = xmalloc_fgetline(ls_fp);
 				if (!line)
 					break;
 				/* I've seen clients complaining when they
diff --git a/networking/traceroute.c b/networking/traceroute.c
index a30decf10..2d3e77011 100644
--- a/networking/traceroute.c
+++ b/networking/traceroute.c
@@ -364,7 +364,7 @@ wait_for_reply(len_and_sockaddr *from_lsa, struct sockaddr *to)
 		read_len = recv_from_to(rcvsock,
 				recv_pkt, sizeof(recv_pkt),
 				/*flags:*/ 0,
-            			&from_lsa->u.sa, to, from_lsa->len);
+				&from_lsa->u.sa, to, from_lsa->len);
 	}
 
 	return read_len;
diff --git a/networking/udhcp/leases.c b/networking/udhcp/leases.c
index afd41bfd4..78b0d0ade 100644
--- a/networking/udhcp/leases.c
+++ b/networking/udhcp/leases.c
@@ -66,7 +66,7 @@ struct dyn_lease* FAST_FUNC add_lease(
 			char *p;
 			if (hostname_len > sizeof(oldest->hostname))
 				hostname_len = sizeof(oldest->hostname);
-            		p = safe_strncpy(oldest->hostname, hostname, hostname_len);
+			p = safe_strncpy(oldest->hostname, hostname, hostname_len);
 			/* sanitization (s/non-ASCII/^/g) */
 			while (*p) {
 				if (*p < ' ' || *p > 126)
diff --git a/networking/udhcp/script.c b/networking/udhcp/script.c
index 065ea0cc7..574c74f45 100644
--- a/networking/udhcp/script.c
+++ b/networking/udhcp/script.c
@@ -17,7 +17,7 @@
 static const uint8_t len_of_option_as_string[] = {
 	[OPTION_IP] =		sizeof("255.255.255.255 "),
 	[OPTION_IP_PAIR] =	sizeof("255.255.255.255 ") * 2,
- 	[OPTION_STATIC_ROUTES]= sizeof("255.255.255.255/32 255.255.255.255 "),
+	[OPTION_STATIC_ROUTES]= sizeof("255.255.255.255/32 255.255.255.255 "),
 	[OPTION_STRING] =	1,
 #if ENABLE_FEATURE_UDHCP_RFC3397
 	[OPTION_STR1035] =	1,
diff --git a/scripts/checkhelp.awk b/scripts/checkhelp.awk
index 2468db2da..94843d6ff 100755
--- a/scripts/checkhelp.awk
+++ b/scripts/checkhelp.awk
@@ -32,7 +32,7 @@ BEGIN {
 }
 END {
 	for (i = 0; i <= pos; i++) {
-# 	printf("%s: help for #%i '%s' == %i\n", file[i], i, conf[i], help[i]);
+#	printf("%s: help for #%i '%s' == %i\n", file[i], i, conf[i], help[i]);
 		if (help[i] == 0) {
 			printf("%s: No helptext for '%s'\n", file[i], conf[i]);
 		}
diff --git a/shell/hush.c b/shell/hush.c
index 9a9b5bb91..e0c562621 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -2037,7 +2037,7 @@ static const char *next_brace_sub(const char *cp)
 				break;
 			cp++;
 			continue;
-    		}
+		}
 		 /*{*/ if ((*cp == '}' && depth-- == 0) || (*cp == ',' && depth == 0))
 			break;
 		if (*cp++ == '{') /*}*/
diff --git a/shell/hush_test/hush-misc/func4.tests b/shell/hush_test/hush-misc/func4.tests
index 33b1663f3..74c1b9a46 100755
--- a/shell/hush_test/hush-misc/func4.tests
+++ b/shell/hush_test/hush-misc/func4.tests
@@ -2,6 +2,6 @@ func() {
 	eval "echo \"\${val_${1}}\""
 }
 
-val_x=24 
+val_x=24
 (func x)
 echo Done
diff --git a/shell/msh_test/msh-execution/nested_break.tests b/shell/msh_test/msh-execution/nested_break.tests
index f2e6f81ae..1a954d227 100755
--- a/shell/msh_test/msh-execution/nested_break.tests
+++ b/shell/msh_test/msh-execution/nested_break.tests
@@ -3,15 +3,15 @@
 n=0
 while :
 do
-        echo A
-        while :
-        do
-    		echo B
-                break
-        done
-        echo iteration
-        [ $n = 1 ] && break
+	echo A
+	while :
+	do
+		echo B
+		break
+	done
+	echo iteration
+	[ $n = 1 ] && break
 	echo C
-        n=`expr $n + 1`
+	n=`expr $n + 1`
 done
 echo D
diff --git a/util-linux/mkfs_ext2.c b/util-linux/mkfs_ext2.c
index 8b435c120..19c3c673e 100644
--- a/util-linux/mkfs_ext2.c
+++ b/util-linux/mkfs_ext2.c
@@ -145,12 +145,12 @@ static void PUT(uint64_t off, void *buf, uint32_t size)
 
 // Standard mke2fs 1.41.9:
 // Usage: mke2fs [-c|-l filename] [-b block-size] [-f fragment-size]
-// 	[-i bytes-per-inode] [-I inode-size] [-J journal-options]
-// 	[-G meta group size] [-N number-of-inodes]
-// 	[-m reserved-blocks-percentage] [-o creator-os]
-// 	[-g blocks-per-group] [-L volume-label] [-M last-mounted-directory]
-// 	[-O feature[,...]] [-r fs-revision] [-E extended-option[,...]]
-// 	[-T fs-type] [-U UUID] [-jnqvFSV] device [blocks-count]
+//	[-i bytes-per-inode] [-I inode-size] [-J journal-options]
+//	[-G meta group size] [-N number-of-inodes]
+//	[-m reserved-blocks-percentage] [-o creator-os]
+//	[-g blocks-per-group] [-L volume-label] [-M last-mounted-directory]
+//	[-O feature[,...]] [-r fs-revision] [-E extended-option[,...]]
+//	[-T fs-type] [-U UUID] [-jnqvFSV] device [blocks-count]
 //
 // Options not commented below are taken but silently ignored:
 enum {
@@ -311,7 +311,7 @@ int mkfs_ext2_main(int argc UNUSED_PARAM, char **argv)
 	nreserved = (uint64_t)nblocks * reserved_percent / 100;
 
 	// N.B. killing e2fsprogs feature! Unused blocks don't account in calculations
- 	nblocks_full = nblocks;
+	nblocks_full = nblocks;
 
 	// If last block group is too small, nblocks may be decreased in order
 	// to discard it, and control returns here to recalculate some
diff --git a/util-linux/mkfs_vfat.c b/util-linux/mkfs_vfat.c
index 54c068d0b..a9a65aa07 100644
--- a/util-linux/mkfs_vfat.c
+++ b/util-linux/mkfs_vfat.c
@@ -208,7 +208,7 @@ int mkfs_vfat_main(int argc UNUSED_PARAM, char **argv)
 	int dev;
 	unsigned bytes_per_sect;
 	unsigned sect_per_fat;
-  	unsigned opts;
+	unsigned opts;
 	uint16_t sect_per_track;
 	uint8_t media_byte;
 	uint8_t sect_per_clust;