diff --git a/Lib/combine3.c b/Lib/combine3.c
index da480cd..c5023c2 100644
--- a/Lib/combine3.c
+++ b/Lib/combine3.c
@@ -69,7 +69,7 @@ if ( (foo=Image_compare_desc(s1, s2)) ) {
     return foo;
     }
 
-if ( (foo=Image_compare_desc(s1, dst))  {
+if ( (foo=Image_compare_desc(s1, dst)) ) {
     fprintf(stderr, "Combine Wauo: destination bad dims %d\n", foo);
     return foo;
     }