diff --git a/libtransmission/utils.c b/libtransmission/utils.c
index 0ff89275f..25b148c01 100644
--- a/libtransmission/utils.c
+++ b/libtransmission/utils.c
@@ -178,8 +178,8 @@ tr_freeMessageList( tr_msg_list * list )
 ***
 **/
 
-static struct tm *
-tr_localtime_r( time_t *_clock, struct tm *_result )
+struct tm *
+tr_localtime_r( const time_t *_clock, struct tm *_result )
 {
 #ifdef HAVE_LOCALTIME_R
     return localtime_r( _clock, _result );
diff --git a/libtransmission/utils.h b/libtransmission/utils.h
index 555b20b2e..65fa036c5 100644
--- a/libtransmission/utils.h
+++ b/libtransmission/utils.h
@@ -466,6 +466,9 @@ void* tr_int2ptr( int );
  */
 char* tr_strratio( char * buf, size_t buflen, double ratio, const char * infinity );
 
+struct tm * tr_localtime_r( const time_t *_clock, struct tm *_result );
+
+
 
 #ifdef __cplusplus
 }