diff --git a/lib/modules/Calendar.pmod/Timezone.pmod b/lib/modules/Calendar.pmod/Timezone.pmod
index df5dd15e0e660f27d3af83c814677e7bbe782178..b1357c58dfc2f4d58cce4d4bbc3d8d335e2b55d1 100644
--- a/lib/modules/Calendar.pmod/Timezone.pmod
+++ b/lib/modules/Calendar.pmod/Timezone.pmod
@@ -906,7 +906,7 @@ class Runtime_timezone_compiler
 	     lambda(string fn)
 	     {
 		return Stdio.read_bytes(base_path+fn) ||
-		   error("Failed to open file %O\n",base_path+fn);
+		   (error("Failed to open file %O\n",base_path+fn), "");
 	     })*"\n";
    }