diff --git a/tools/hitag2crack/crack5gpu/ht2crack5gpu.c b/tools/hitag2crack/crack5gpu/ht2crack5gpu.c
index 67e59f86c..9074d8bd1 100644
--- a/tools/hitag2crack/crack5gpu/ht2crack5gpu.c
+++ b/tools/hitag2crack/crack5gpu/ht2crack5gpu.c
@@ -285,7 +285,6 @@ int main(int argc, char *argv[]) {
         exit(1);
     }
 
-    int gpu = 1;
     err = clGetDeviceIDs(ctx.platform_id, CL_DEVICE_TYPE_GPU, 1, &(ctx.device_id), NULL);
     if (err != CL_SUCCESS) {
         printf("Error: Failed to create a device group!: %d\n", err);