diff --git a/defs.h b/defs.h
index 074c8f0..4e06a92 100644
--- a/defs.h
+++ b/defs.h
@@ -370,7 +370,7 @@
 # define DEFAULT_PERSONALITY 0
 #endif
 #ifndef PERSONALITY0_WORDSIZE
-# define PERSONALITY0_WORDSIZE (int)(sizeof(long))
+# define PERSONALITY0_WORDSIZE SIZEOF_LONG
 #endif
 
 #if defined(I386) || defined(X86_64)