diff --git a/src/userfunc.c b/src/userfunc.c
index 4c59bb5..814d400 100644
--- a/src/userfunc.c
+++ b/src/userfunc.c
@@ -668,7 +668,7 @@
 		    goto errret;
 	    }
 	    else
-		fp->uf_ret_type = &t_unknown;
+		fp->uf_ret_type = &t_any;
 	}
 
 	fp->uf_lines = newlines;