2 files changed, 2 insertions, 2 deletions
diff --git a/src/core/wee-util.c b/src/core/wee-util.c
index d2b6a3681..d4d4e8d8f 100644
--- a/src/core/wee-util.c
+++ b/src/core/wee-util.c
@@ -305,7 +305,7 @@ util_timeval_add (struct timeval *tv, long long interval)
  * (can be localized).
  */
 
-char *
+const char *
 util_get_time_string (const time_t *date)
 {
     struct tm *local_time;
diff --git a/src/core/wee-util.h b/src/core/wee-util.h
index 0103fb842..583dfc0d9 100644
--- a/src/core/wee-util.h
+++ b/src/core/wee-util.h
@@ -38,7 +38,7 @@ extern void util_setrlimit ();
 extern int util_timeval_cmp (struct timeval *tv1, struct timeval *tv2);
 extern long long util_timeval_diff (struct timeval *tv1, struct timeval *tv2);
 extern void util_timeval_add (struct timeval *tv, long long interval);
-extern char *util_get_time_string (const time_t *date);
+extern const char *util_get_time_string (const time_t *date);
 extern int util_signal_search (const char *name);
 extern void util_catch_signal (int signum, void (*handler)(int));
 extern int util_mkdir_home (const char *directory, int mode);