diff --git a/asminc/stat.inc b/asminc/stat.inc
deleted file mode 100644
index d9c74aeaa..000000000
--- a/asminc/stat.inc
+++ /dev/null
@@ -1,3 +0,0 @@
-; File mode constants, must match the values in the C headers
-S_IREAD         = $0100  ; octal 0400
-S_IWRITE        = $0080  ; octal 0200
diff --git a/include/sys/stat.h b/include/sys/stat.h
index e49c370f9..ece324f0b 100644
--- a/include/sys/stat.h
+++ b/include/sys/stat.h
@@ -48,7 +48,7 @@
 ** https://en.wikipedia.org/wiki/File_system_permissions#Numeric_notation
 ** (S_IREAD and S_IWRITE are aliases for S_IRUSR and S_IWUSR)
 **
-** Must match the values in asminc/stat.inc and src/sim65/paravirt.c
+** Must match the values in src/sim65/paravirt.c
 */
 
 #define S_IREAD  0400
diff --git a/libsrc/common/_fopen.s b/libsrc/common/_fopen.s
index 0154858dd..29f1c4cd9 100644
--- a/libsrc/common/_fopen.s
+++ b/libsrc/common/_fopen.s
@@ -15,7 +15,6 @@
         .include        "errno.inc"
         .include        "fcntl.inc"
         .include        "_file.inc"
-        .include        "stat.inc"
 
 
 ; ------------------------------------------------------------------------
@@ -83,10 +82,7 @@ modeok: ldy     #$00
         tya
         iny
         sta     (sp),y
-        lda     #<(S_IREAD|S_IWRITE)
-        ldx     #>(S_IREAD|S_IWRITE)
-        jsr     pushax          ; Push the "mode" argument onto the stack
-        ldy     #6              ; Size of arguments in bytes
+        ldy     #4              ; Size of arguments in bytes
         jsr     _open           ; Will cleanup the stack
 
 ; Check the result of the open() call