1 files changed, 2 insertions, 1 deletions
diff --git a/misc.c b/misc.c
index 97e8049..901e8cb 100644
--- a/misc.c
+++ b/misc.c
@@ -1129,7 +1129,8 @@ gen_path (const char *directory, const char *filename, struct gc_arena *gc)
 #endif
       )
     {
-      struct buffer out = alloc_buf_gc (256, gc);
+      const size_t outsize = strlen(safe_filename) + (directory ? strlen (directory) : 0) + 16;
+      struct buffer out = alloc_buf_gc (outsize, gc);
       char dirsep[2];
 
       dirsep[0] = OS_SPECIFIC_DIRSEP;