diff --git a/agent/consul/leader_connect_ca.go b/agent/consul/leader_connect_ca.go
index 51d157a61b..8918b7f42b 100644
--- a/agent/consul/leader_connect_ca.go
+++ b/agent/consul/leader_connect_ca.go
@@ -909,6 +909,9 @@ func (c *CAManager) UpdateConfiguration(args *structs.CARequest) (reterr error)
 		if respErr, ok := resp.(error); ok {
 			return respErr
 		}
+		if respOk, ok := resp.(bool); ok && !respOk {
+			return errors.New("configuration not applied")
+		}
 
 		// If the config has been committed, update the local provider instance
 		cleanupNewProvider = false