diff --git a/src/cache/lru.js b/src/cache/lru.js
index 2d46e5a5fe..a1dbfbd705 100644
--- a/src/cache/lru.js
+++ b/src/cache/lru.js
@@ -95,6 +95,9 @@ module.exports = function (opts) {
 	};
 
 	cache.del = function (keys) {
+		if (!cache.enabled) {
+			return;
+		}
 		if (!Array.isArray(keys)) {
 			keys = [keys];
 		}
diff --git a/src/cache/ttl.js b/src/cache/ttl.js
index fdc134be81..c8ed90af57 100644
--- a/src/cache/ttl.js
+++ b/src/cache/ttl.js
@@ -70,6 +70,9 @@ module.exports = function (opts) {
 	};
 
 	cache.del = function (keys) {
+		if (!cache.enabled) {
+			return;
+		}
 		if (!Array.isArray(keys)) {
 			keys = [keys];
 		}