1 files changed, 1 insertions, 1 deletions
diff --git a/mg.c b/mg.c
index b04e24faa4..8fa8ae9f48 100644
--- a/mg.c
+++ b/mg.c
@@ -1312,7 +1312,7 @@ Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg)
     }
     else {
 	i = whichsig(s);	/* ...no, a brick */
-	if (i < 0) {
+	if (i <= 0) {
 	    if (ckWARN(WARN_SIGNAL))
 		Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "No such signal: SIG%s", s);
 	    return 0;