diff --git a/collects/compiler/private/xform.ss b/collects/compiler/private/xform.ss
index f60b3e85cd..35e9cafcfe 100644
--- a/collects/compiler/private/xform.ss
+++ b/collects/compiler/private/xform.ss
@@ -836,7 +836,7 @@
                
                strlen cos sin exp pow log sqrt atan2 
                isnan isinf fpclass _fpclass _isnan __isfinited __isnanl 
-               __isinff __isinfl isnanf isinff
+               __isinff __isinfl isnanf isinff __isinfd __isnanf __isnand
                floor ceil round fmod fabs __maskrune _errno __errno
                isalpha isdigit isspace tolower toupper
                fread fwrite socket fcntl setsockopt connect send recv close