diff --git a/DASP/src/common.h b/DASP/src/common.h
index 3c40119..b0c8a18 100644
--- a/DASP/src/common.h
+++ b/DASP/src/common.h
@@ -1,5 +1,3 @@
-#ifndef _COMMON_H_
-#define _COMMON_H_
 #include <cuda.h>
 #include <cuda_fp16.h>
 #include <mma.h>
@@ -59,5 +57,4 @@
 #define GET_8_BIT(src, index) ((src >> (index << 3)) & 0xff)
 #define GET_4_BIT(src, index) ((src >> (index << 2)) & 0xf)
 #define GET_2_BIT(src) ((src >> 30) & 0b11)
-#define omp_valve 1e4
-#endif
\ No newline at end of file
+#define omp_valve 1e4
\ No newline at end of file