1 files changed, 1 insertions, 1 deletions
diff --git a/tmux.h b/tmux.h
index 34a0fd9b..ca946e7b 100644
--- a/tmux.h
+++ b/tmux.h
@@ -38,7 +38,7 @@
 
 #include "array.h"
 
-extern const char    *__progname;
+extern char    *__progname;
 
 /* Default configuration files. */
 #define DEFAULT_CFG ".tmux.conf"