diff --git a/tests/modeprint/modeprint.c b/tests/modeprint/modeprint.c
index 880269b0..9372ad92 100644
--- a/tests/modeprint/modeprint.c
+++ b/tests/modeprint/modeprint.c
@@ -113,7 +113,7 @@ static int printProperty(int fd, drmModeResPtr res, drmModePropertyPtr props, ui
 
 	} else {
 		for (j = 0; j < props->count_enums; j++) {
-			printf("\t\t%" PRId64" = %s\n", (uint64_t)props->enums[j].value, props->enums[j].name);
+			printf("\t\t%" PRIu64" = %s\n", (uint64_t)props->enums[j].value, props->enums[j].name);
 			if (props->enums[j].value == value)
 				name = props->enums[j].name;
 		}