diff --git a/arch/arm/bits/alltypes.h.sh b/arch/arm/bits/alltypes.h.sh
index 4ba3d81caf825716978d744869893a2885bc13c0..274de0df7d9dcece1ea2a192519f8dc59b3536b2 100755
--- a/arch/arm/bits/alltypes.h.sh
+++ b/arch/arm/bits/alltypes.h.sh
@@ -18,7 +18,7 @@ union \1 \2;\
 
 TYPEDEF unsigned size_t;
 TYPEDEF int ssize_t;
-TYPEDEF long ptrdiff_t;
+TYPEDEF int ptrdiff_t;
 
 TYPEDEF __builtin_va_list va_list;
 
diff --git a/arch/i386/bits/alltypes.h.sh b/arch/i386/bits/alltypes.h.sh
index 109566901cd71c214b3c808b989773441ec3a8ed..10fcf6a3c46a852d86e287e3ce7918fb2226737a 100755
--- a/arch/i386/bits/alltypes.h.sh
+++ b/arch/i386/bits/alltypes.h.sh
@@ -18,7 +18,7 @@ union \1 \2;\
 
 TYPEDEF unsigned size_t;
 TYPEDEF int ssize_t;
-TYPEDEF long ptrdiff_t;
+TYPEDEF int ptrdiff_t;
 
 #if __GNUC__ >= 3
 TYPEDEF __builtin_va_list va_list;