diff --git a/pkg/policies/opa/rego/gcp/google_container_node_pool/cosNodeImageUsed.rego b/pkg/policies/opa/rego/gcp/google_container_node_pool/cosNodeImageUsed.rego
index e427d5ca7..308bddee8 100755
--- a/pkg/policies/opa/rego/gcp/google_container_node_pool/cosNodeImageUsed.rego
+++ b/pkg/policies/opa/rego/gcp/google_container_node_pool/cosNodeImageUsed.rego
@@ -2,6 +2,6 @@ package accurics
 
 cosNodeImageUsed[api.id]{
     api := input.google_container_node_pool[_]
-    node := api.config.node_config[_] 
-    node.image_type != "cos"
-}
\ No newline at end of file
+    node := api.config.node_config[_]
+    not startswith(lower(node.image_type), "cos")
+}