diff --git a/pkg/registry/cachesize/cachesize.go b/pkg/registry/cachesize/cachesize.go
index 998bb68d8f4..52b9f082940 100644
--- a/pkg/registry/cachesize/cachesize.go
+++ b/pkg/registry/cachesize/cachesize.go
@@ -89,6 +89,7 @@ func InitializeWatchCacheSizes(expectedRAMCapacityMB int) {
 	watchCacheSizes[Endpoints] = maxInt(10*clusterSize, 1000)
 	watchCacheSizes[Nodes] = maxInt(3*clusterSize, 1000)
 	watchCacheSizes[Pods] = maxInt(10*clusterSize, 1000)
+	watchCacheSizes[Services] = maxInt(5*clusterSize, 1000)
 }
 
 func SetWatchCacheSizes(cacheSizes []string) {