diff --git a/internal/controller/acl/acl.go b/internal/controller/acl/acl.go
index f3b0fd3..fdd16e3 100644
--- a/internal/controller/acl/acl.go
+++ b/internal/controller/acl/acl.go
@@ -125,7 +125,10 @@ func (c *connectDisconnector) Connect(ctx context.Context, mg resource.Managed)
 }
 
 func (c *connectDisconnector) Disconnect(ctx context.Context) error {
-	c.cachedClient.Close()
+	if c.cachedClient != nil {
+		c.cachedClient.Close()
+	}
+	c.cachedClient = nil
 	return nil
 }
 
diff --git a/internal/controller/topic/topic.go b/internal/controller/topic/topic.go
index a1e781e..eaa4a10 100644
--- a/internal/controller/topic/topic.go
+++ b/internal/controller/topic/topic.go
@@ -121,7 +121,10 @@ func (c *connectDisconnector) Connect(ctx context.Context, mg resource.Managed)
 }
 
 func (c *connectDisconnector) Disconnect(ctx context.Context) error {
-	c.cachedClient.Close()
+	if c.cachedClient != nil {
+		c.cachedClient.Close()
+	}
+	c.cachedClient = nil
 	return nil
 }