diff --git a/src/regexp_nfa.c b/src/regexp_nfa.c
index 67d4af2..26a8f35 100644
--- a/src/regexp_nfa.c
+++ b/src/regexp_nfa.c
@@ -4564,7 +4564,7 @@
 
 	    // avoid compiler warnings
 	    save_ptr = NULL;
-	    vim_memset(&save_multipos, 0, sizeof(save_multipos));
+	    CLEAR_FIELD(save_multipos);
 
 	    // Set the position (with "off" added) in the subexpression.  Save
 	    // and restore it when it was in use.  Otherwise fill any gap.
@@ -4717,7 +4717,7 @@
 		save_ptr = sub->list.line[subidx].end;
 		sub->list.line[subidx].end = rex.input + off;
 		// avoid compiler warnings
-		vim_memset(&save_multipos, 0, sizeof(save_multipos));
+		CLEAR_FIELD(save_multipos);
 	    }
 
 	    subs = addstate(l, state->out, subs, pim, off_arg);