diff --git a/dlls/kernel/comm.spec b/dlls/kernel/comm.spec
index d058180d161..d2b2cca9c36 100644
--- a/dlls/kernel/comm.spec
+++ b/dlls/kernel/comm.spec
@@ -14,6 +14,9 @@
  14 stub CCLRBRK
  15 stub GETDCB
  16 stub WEP
+ 17 stub SUSPENDOPENCOMMPORTS # win3.1
+ 18 stub REACTIVATEOPENCOMMPORTS # win3.1
  19 stub COMMWRITESTRING
  20 stub READCOMMSTRING
 100 stub ENABLENOTIFICATION
+101 stub ordinal_only__win31