diff --git a/apps/plugins/test_mem.c b/apps/plugins/test_mem.c
index a4b45fb32f..7a97f518cc 100644
--- a/apps/plugins/test_mem.c
+++ b/apps/plugins/test_mem.c
@@ -132,6 +132,7 @@ static void read_test(volatile int *buf, int buf_size, int loop_cnt)
             x = buf[j+4];
         }
     }
+    (void)x;
 #endif
 }