diff --git a/generate/input/callbacks.json b/generate/input/callbacks.json
index 708edc27e..d9f0af8d9 100644
--- a/generate/input/callbacks.json
+++ b/generate/input/callbacks.json
@@ -180,10 +180,6 @@
         "name": "hunk",
         "cType": "const git_diff_hunk *"
       },
-      {
-        "name": "line",
-        "cType": "const git_diff_line *"
-      },
       {
         "name": "payload",
         "cType": "void *"