diff --git a/src/pygit2.c b/src/pygit2.c
index 59ae098b4..64ff4b6db 100644
--- a/src/pygit2.c
+++ b/src/pygit2.c
@@ -376,6 +376,7 @@ moduleinit(PyObject* m)
     ADD_CONSTANT_INT(m, GIT_DIFF_IGNORE_WHITESPACE_EOL)
     ADD_CONSTANT_INT(m, GIT_DIFF_IGNORE_SUBMODULES)
     ADD_CONSTANT_INT(m, GIT_DIFF_PATIENCE)
+    ADD_CONSTANT_INT(m, GIT_DIFF_MINIMAL)
     ADD_CONSTANT_INT(m, GIT_DIFF_INCLUDE_IGNORED)
     ADD_CONSTANT_INT(m, GIT_DIFF_INCLUDE_UNTRACKED)
     ADD_CONSTANT_INT(m, GIT_DIFF_INCLUDE_UNMODIFIED)