diff --git a/src/os/inc/osDef.h b/src/os/inc/osDef.h
index f646940d3aa4379ba6e7ca12b106fdd4b147f5b1..e15c45ad1412b2c46c23261593923286afecdf27 100644
--- a/src/os/inc/osDef.h
+++ b/src/os/inc/osDef.h
@@ -95,7 +95,7 @@ extern "C" {
   #define threadlocal __thread
 #else
   // #define threadlocal
-  #error please follow with the target platform's thread-local implementation
+  #error please follow with the thread-local implementation on the target platform 
 #endif
 
 #ifdef __cplusplus