diff --git a/os2/wccos2.mak b/os2/wccos2.mak
index bad70108..8d94fd63 100644
--- a/os2/wccos2.mak
+++ b/os2/wccos2.mak
@@ -46,7 +46,7 @@ LDFLAGS =
 
 CPPFLAGS = /i=$(PDCURSES_HOME) /i=$(CCINCDIR)
 
-CCFLAGS = /bt=$(TARGET) /bm /3s /wx /s /zq /mf $(CFLAGS) $(CPPFLAGS)
+CCFLAGS = /bt=$(TARGET) /bm /wx /s /zq /mf $(CFLAGS) $(CPPFLAGS)
 
 LINK		= wlink