diff --git a/cmd/winfe/mkfiles32/mozilla.mak b/cmd/winfe/mkfiles32/mozilla.mak
index 9e7f98ba70da..674fd337285a 100644
--- a/cmd/winfe/mkfiles32/mozilla.mak
+++ b/cmd/winfe/mkfiles32/mozilla.mak
@@ -743,7 +743,6 @@ RCDISTINCLUDES=$(DIST)\include;$(XPDIST)\public\security
 
 #Added MQUOTE
 CDEFINES=/DXP_PC /Dx386 /D_WINDOWS /D_X86_ \
-    /DMOCHA \
     /D_MBCS \
     /DEDIT_REMOTE /DLAYERS /DMQUOTE \
 	/D_IMAGE_CONVERT \
diff --git a/config/config.mak b/config/config.mak
index fe6e19de21e6..418ed926ed98 100644
--- a/config/config.mak
+++ b/config/config.mak
@@ -176,9 +176,9 @@ INCS=$(INCS) -I$(DEPTH)\lib\liblayer\include
 
 # Perhaps we should add MOZ_LITENESS_FLAGS to 16 bit build
 !if "$(MOZ_BITS)" == "16"
-CFLAGS=$(MOZ_JAVA_FLAG) -DMOCHA -DLAYERS -DEDITOR $(OS_CFLAGS) $(MOZ_CFLAGS)
+CFLAGS=$(MOZ_JAVA_FLAG) -DLAYERS -DEDITOR $(OS_CFLAGS) $(MOZ_CFLAGS)
 !else
-CFLAGS=$(MOZ_JAVA_FLAG) -DMOCHA -DLAYERS $(OS_CFLAGS) $(MOZ_CFLAGS) $(MOZ_LITENESS_FLAGS)
+CFLAGS=$(MOZ_JAVA_FLAG) -DLAYERS $(OS_CFLAGS) $(MOZ_CFLAGS) $(MOZ_LITENESS_FLAGS)
 !endif
 LFLAGS=$(OS_LFLAGS) $(LLFLAGS) $(MOZ_LFLAGS)