diff --git a/demos/ota/ota_demo_core_http/ota_demo_core_http.c b/demos/ota/ota_demo_core_http/ota_demo_core_http.c
index b26a086306..56ccbc0d8a 100644
--- a/demos/ota/ota_demo_core_http/ota_demo_core_http.c
+++ b/demos/ota/ota_demo_core_http/ota_demo_core_http.c
@@ -1944,8 +1944,8 @@ static void * otaThread( void * pParam )
     /* Calling OTA agent task. */
     OTA_EventProcessingTask( pParam );
     LogInfo( ( "OTA Agent stopped." ) );
-    pthread_detach(pthread_self());
-    pthread_exit(NULL);
+    pthread_detach( pthread_self() );
+    pthread_exit( NULL );
     return NULL;
 }