diff --git a/textscreen/txt_fileselect.c b/textscreen/txt_fileselect.c
index 89934375..8420a3ae 100644
--- a/textscreen/txt_fileselect.c
+++ b/textscreen/txt_fileselect.c
@@ -155,7 +155,7 @@ int TXT_CanSelectFiles(void)
     return 0;
 }
 
-char *TXT_SelectFile(char *window_title, char **extensions)
+char *TXT_SelectFile(const char *window_title, char **extensions)
 {
     return NULL;
 }