1 files changed, 1 insertions, 0 deletions

diff --git a/mailmap.c b/mailmap.c
index da2589b082..2c6e9b238d 100644
--- a/mailmap.c
+++ b/mailmap.c
@@ -1,4 +1,5 @@
 #include "cache.h"
+#include "environment.h"
 #include "string-list.h"
 #include "mailmap.h"
 #include "object-store.h"