diff --git a/cfg.mk b/cfg.mk
index bf5cb7df46..307009e54b 100644
--- a/cfg.mk
+++ b/cfg.mk
@@ -568,7 +568,7 @@ sc_avoid_attribute_unused_in_header:
 	  $(_sc_search_regexp)
 
 sc_prohibit_int_ijk:
-	@prohibit='\<(int|unsigned) ([^(]* )*(i|j|k)\>(\s|,|;)'		\
+	@prohibit='\<(int|unsigned) ([^(=]* )*(i|j|k)\>(\s|,|;)'	\
 	halt='use size_t, not int/unsigned int for loop vars i, j, k'	\
 	  $(_sc_search_regexp)