diff --git a/core/cpu/x86/32/32.factor b/core/cpu/x86/32/32.factor
index d3e33c46bd..4ed186d769 100755
--- a/core/cpu/x86/32/32.factor
+++ b/core/cpu/x86/32/32.factor
@@ -261,6 +261,10 @@ windows? [
     cell "ulonglong" c-type set-c-type-align
 ] unless
 
+macosx? [
+    cell "double" c-type set-c-type-align
+] when
+
 T{ x86-backend f 4 } compiler-backend set-global
 
 : sse2? "Intrinsic" throw ;