diff --git a/tools/testing/selftests/arm64/mte/check_tags_inclusion.c b/tools/testing/selftests/arm64/mte/check_tags_inclusion.c
index 2b1425b92b69..a3d1e23fe02a 100644
--- a/tools/testing/selftests/arm64/mte/check_tags_inclusion.c
+++ b/tools/testing/selftests/arm64/mte/check_tags_inclusion.c
@@ -65,7 +65,7 @@ static int check_single_included_tags(int mem_type, int mode)
 			ptr = mte_insert_tags(ptr, BUFFER_SIZE);
 			/* Check tag value */
 			if (MT_FETCH_TAG((uintptr_t)ptr) == tag) {
-				ksft_print_msg("FAIL: wrong tag = 0x%x with include mask=0x%x\n",
+				ksft_print_msg("FAIL: wrong tag = 0x%lx with include mask=0x%x\n",
 					       MT_FETCH_TAG((uintptr_t)ptr),
 					       MT_INCLUDE_VALID_TAG(tag));
 				result = KSFT_FAIL;
@@ -97,7 +97,7 @@ static int check_multiple_included_tags(int mem_type, int mode)
 			ptr = mte_insert_tags(ptr, BUFFER_SIZE);
 			/* Check tag value */
 			if (MT_FETCH_TAG((uintptr_t)ptr) < tag) {
-				ksft_print_msg("FAIL: wrong tag = 0x%x with include mask=0x%x\n",
+				ksft_print_msg("FAIL: wrong tag = 0x%lx with include mask=0x%lx\n",
 					       MT_FETCH_TAG((uintptr_t)ptr),
 					       MT_INCLUDE_VALID_TAGS(excl_mask));
 				result = KSFT_FAIL;