diff --git a/evutil.c b/evutil.c
index 666b6618..d591956f 100644
--- a/evutil.c
+++ b/evutil.c
@@ -224,7 +224,7 @@ evutil_snprintf(char *buf, size_t buflen, const char *format, ...)
 	int r;
 	va_list ap;
 	va_start(ap, format);
-	r = vsnprintf(buf, buflen, format, ap);
+	r = evutil_vsnprintf(buf, buflen, format, ap);
 	va_end(ap);
 	return r;
 }