diff --git a/src/fpga/api.cpp b/src/fpga/api.cpp
index 32930b29b2905ddaafc8d90c7973b16304d1f8ed..4f51f967145fe331ee316234b131d9106a3659f9 100644
--- a/src/fpga/api.cpp
+++ b/src/fpga/api.cpp
@@ -22,7 +22,7 @@ limitations under the License. */
 #include "filter.h"
 #include "image.h"
 #define FPGA_TEST_MODE
-//#define PADDLE_MOBILE_OS_LINUX
+#define PADDLE_MOBILE_OS_LINUX
 
 namespace paddle_mobile {
 namespace fpga {