1 files changed, 2 insertions, 2 deletions
diff --git a/src/util.h b/src/util.h
index 0e28006..30acf34 100644
--- a/src/util.h
+++ b/src/util.h
@@ -29,9 +29,9 @@ char *color_to_string(color_t *color);
 
 void color_print(FILE *stream, color_t *color);
 
-struct timespec timespec_from_ms(long ms);
+const struct timespec timespec_from_ms(long ms);
 
-long timespec_to_ms(struct timespec ts);
+const long timespec_to_ms(struct timespec ts);
 
 struct timespec timespec_diff(struct timespec a, struct timespec b);