diff --git a/busybox.h b/busybox.h
index 573cce190..5e46ebbd8 100644
--- a/busybox.h
+++ b/busybox.h
@@ -235,9 +235,11 @@ extern int sysinfo (struct sysinfo* info);
 #ifdef BB_FEATURE_HUMAN_READABLE
 const char *make_human_readable_str(unsigned long val, unsigned long hr);
 #endif
-#define KILOBYTE 1024
-#define MEGABYTE (KILOBYTE*1024)
-#define GIGABYTE (MEGABYTE*1024)
+enum {
+	KILOBYTE = 1024,
+	MEGABYTE = (KILOBYTE*1024),
+	GIGABYTE = (MEGABYTE*1024)
+};
 
 #ifdef BB_FEATURE_BUFFERS_GO_ON_STACK
 #define RESERVE_BB_BUFFER(buffer,len)           char buffer[len]
diff --git a/include/busybox.h b/include/busybox.h
index 573cce190..5e46ebbd8 100644
--- a/include/busybox.h
+++ b/include/busybox.h
@@ -235,9 +235,11 @@ extern int sysinfo (struct sysinfo* info);
 #ifdef BB_FEATURE_HUMAN_READABLE
 const char *make_human_readable_str(unsigned long val, unsigned long hr);
 #endif
-#define KILOBYTE 1024
-#define MEGABYTE (KILOBYTE*1024)
-#define GIGABYTE (MEGABYTE*1024)
+enum {
+	KILOBYTE = 1024,
+	MEGABYTE = (KILOBYTE*1024),
+	GIGABYTE = (MEGABYTE*1024)
+};
 
 #ifdef BB_FEATURE_BUFFERS_GO_ON_STACK
 #define RESERVE_BB_BUFFER(buffer,len)           char buffer[len]