diff --git a/driver/level3/level3_thread.c b/driver/level3/level3_thread.c
index 018813b8c..7e75f69d1 100644
--- a/driver/level3/level3_thread.c
+++ b/driver/level3/level3_thread.c
@@ -91,11 +91,7 @@
 #endif
 
 typedef struct {
-#if __STDC_VERSION__ >= 201112L
-_Atomic
-#else  
   volatile
-#endif
    BLASLONG working[MAX_CPU_NUMBER][CACHE_LINE_SIZE * DIVIDE_RATE];
 } job_t;