1 files changed, 1 insertions, 1 deletions
diff --git a/window.c b/window.c
index 06733201..aeed4bc9 100644
--- a/window.c
+++ b/window.c
@@ -473,7 +473,7 @@ window_pane_spawn(struct window_pane *wp,
 		if (chdir(wp->cwd) != 0)
 			chdir("/");
 		for (envq = envp; *envq != NULL; envq++) {
-			if (putenv((char *) *envq) != 0)
+			if (putenv(xstrdup(*envq)) != 0)
 				fatal("putenv failed");
 		}
 		sigreset();