diff --git a/std.isbpl b/std.isbpl
index 3b72c30..a8b1bf7 100644
--- a/std.isbpl
+++ b/std.isbpl
@@ -121,7 +121,7 @@ func itos {
 }
 
 func ftos {
-    dtos
+    _double dtos
 }
 
 func dtos {