1 files changed, 1 insertions, 1 deletions
diff --git a/error.c b/error.c
index e12318a..e1a0120 100644
--- a/error.c
+++ b/error.c
@@ -37,7 +37,7 @@ throwerror(Rune *msg, int err)
 	td->lasterror = err;
 	if(td->lasterrormsg)
 		free(td->lasterrormsg);
-	td->lasterrormsg = runestrdup(msg);
+	td->lasterrormsg = msg ? runestrdup(msg) : nil;
 
 	while(frame != nil){
 		for(ErrorGuard *eg = frame->errorguards; eg != nil; eg = eg->next){