diff --git a/src/ui/window.c b/src/ui/window.c
index 5ad354f2..be89d295 100644
--- a/src/ui/window.c
+++ b/src/ui/window.c
@@ -1745,7 +1745,7 @@ win_command_exec_error(ProfWin *window, const char *const command, const char *c
     GString *msg = g_string_new(NULL);
     g_string_vprintf(msg, error, arg);
 
-    win_println(window, THEME_ERROR, '!', "Error executing command %s: %s", command, msg);
+    win_println(window, THEME_ERROR, '!', "Error executing command %s: %s", command, msg->str);
 
     g_string_free(msg, TRUE);
     va_end(arg);