diff --git a/icu4c/source/test/cintltst/cmsccoll.c b/icu4c/source/test/cintltst/cmsccoll.c
index 45a08e608c5..312228b41f4 100644
--- a/icu4c/source/test/cintltst/cmsccoll.c
+++ b/icu4c/source/test/cintltst/cmsccoll.c
@@ -3582,7 +3582,7 @@ Mark	NON-IGNOREABLE: #1 > #2
         "A\\u0301b"
       }, 22, 
       { UCOL_ALTERNATE_HANDLING, UCOL_STRENGTH }, { UCOL_SHIFTED, UCOL_QUATERNARY }
-      //{ UCOL_ALTERNATE_HANDLING, UCOL_STRENGTH }, { UCOL_NON_IGNORABLE, UCOL_TERTIARY }
+      /*{ UCOL_ALTERNATE_HANDLING, UCOL_STRENGTH }, { UCOL_NON_IGNORABLE, UCOL_TERTIARY }*/
     }
   };