diff --git a/co_routine.cpp b/co_routine.cpp
index 810ed22..06b9d84 100644
--- a/co_routine.cpp
+++ b/co_routine.cpp
@@ -520,13 +520,15 @@ int co_create( stCoRoutine_t **ppco,const stCoRoutineAttr_t *attr,pfn_co_routine
 }
 void co_free( stCoRoutine_t *co )
 {
+	if( co && co->cIsShareStack )
+		free( co->stack_mem );
 	free( co );
 }
 void co_release( stCoRoutine_t *co )
 {
 	if( co->cEnd )
 	{
-		free( co );
+		co_free( co );
 	}
 }