diff --git a/src/iokernellang/codesImpl.c b/src/iokernellang/codesImpl.c
index f448a3afdbb227237ae3539408665125ad90b4b8..bec8dd84a5c9bfe1da0678c3e70f8305a5d7edea 100644
--- a/src/iokernellang/codesImpl.c
+++ b/src/iokernellang/codesImpl.c
@@ -284,7 +284,6 @@ int64_t ex(
                     var[1] = t1;
                     *inst_ready = 1;
 
-		    printf("\n group size is %d ", (int)var[1]);
                     return *group_size;
                 }
                 case GETCURTIME: