diff --git a/cache.c b/cache.c
index 9e7eeb0..801e63f 100644
--- a/cache.c
+++ b/cache.c
@@ -343,7 +343,7 @@
 	int result;
 
 	/* If the cache is disabled, just generate the content */
-	if (size <= 0) {
+	if (size <= 0 || ttl == 0) {
 		fn();
 		return 0;
 	}