diff --git a/src/main.c b/src/main.c
index a9d4ba6..82b262e 100644
--- a/src/main.c
+++ b/src/main.c
@@ -328,7 +328,7 @@ build_offtab(struct cav_state *state)
         off = &off_desc->off;
         off->off = state->cur_off;
 
-        state->cur_off += off->size;
+        state->cur_off += off->size + strlen(off_desc->path) + 1;
         write(state->out_fd, off, sizeof(*off));
     }