diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 488f4c5c1..68a36bf72 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -244,7 +244,6 @@ set(LVGL_TEST_OPTIONS_TEST_COMMON
     ${LVGL_TEST_COMMON_EXAMPLE_OPTIONS}
     -DLV_FONT_DEFAULT=&lv_font_montserrat_14
     -Wno-unused-but-set-variable # unused variables are common in the dual-heap arrangement
-    -Wno-unused-variable
 )
 
 set(LVGL_TEST_OPTIONS_TEST_SYSHEAP
@@ -298,7 +297,6 @@ set(COMPILE_OPTIONS
     -Wmissing-prototypes
     -Wpointer-arith
     -Wmultichar
-    -Wno-discarded-qualifiers
     -Wpedantic
     -Wreturn-type
     -Wshadow
diff --git a/tests/src/test_cases/test_msg.c b/tests/src/test_cases/test_msg.c
index 1e18568d8..b545a99c9 100644
--- a/tests/src/test_cases/test_msg.c
+++ b/tests/src/test_cases/test_msg.c
@@ -18,13 +18,13 @@ static uint32_t value_received;
 
 static void msg_cb(lv_msg_t * msg)
 {
-    uint32_t * v = lv_msg_get_payload(msg);
+    const uint32_t * v = lv_msg_get_payload(msg);
     value_received = *v;
 }
 static void event_cb(lv_event_t * e)
 {
     lv_msg_t * msg = lv_event_get_msg(e);
-    uint32_t * v = lv_msg_get_payload(msg);
+    const uint32_t * v = lv_msg_get_payload(msg);
     lv_label_set_text_fmt(lv_event_get_target(e), "%d", *v);
 }