1 files changed, 1 insertions, 0 deletions
diff --git a/cache.h b/cache.h
index 139b911816..3c6b677418 100644
--- a/cache.h
+++ b/cache.h
@@ -345,6 +345,7 @@ static inline enum object_type object_type(unsigned int mode)
 #define GIT_DIR_ENVIRONMENT "GIT_DIR"
 #define GIT_NAMESPACE_ENVIRONMENT "GIT_NAMESPACE"
 #define GIT_WORK_TREE_ENVIRONMENT "GIT_WORK_TREE"
+#define GIT_PREFIX_ENVIRONMENT "GIT_PREFIX"
 #define DEFAULT_GIT_DIR_ENVIRONMENT ".git"
 #define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY"
 #define INDEX_ENVIRONMENT "GIT_INDEX_FILE"