diff --git a/screen.c b/screen.c
index 885cc3522..404743f72 100644
--- a/screen.c
+++ b/screen.c
@@ -51,6 +51,7 @@ efficient way for transforming that to the desired screen content.
 #include "output.h"
 #include "highlight.h"
 #include "screen.h"
+#include "env.h"
 
 /**
    Ugly kludge. The internal buffer used to store output of