diff --git a/util/kconfig/toada.c b/util/kconfig/toada.c
index 677aaca815..02b6351c5d 100644
--- a/util/kconfig/toada.c
+++ b/util/kconfig/toada.c
@@ -103,7 +103,7 @@ int main(int argc, char *argv[])
 				print_bool(name, true);
 			} else if (strncmp(val, "0x", 2) == 0) {
 				print_hex(name, val + 2);
-			} else if (isdigit(val[0])) {
+			} else if (isdigit(val[0]) || (val[0] == '-' && isdigit(val[1]))) {
 				print_dec(name, val);
 			} else {
 				fprintf(stderr,