1 files changed, 1 insertions, 0 deletions
diff --git a/prompt.c b/prompt.c
index 50df17279d..ba10813b31 100644
--- a/prompt.c
+++ b/prompt.c
@@ -1,5 +1,6 @@
 #include "cache.h"
 #include "config.h"
+#include "environment.h"
 #include "run-command.h"
 #include "strbuf.h"
 #include "prompt.h"