diff --git a/util/ceg/util/make_ce b/util/ceg/util/make_ce
index 75c63f027..adabac39e 100644
--- a/util/ceg/util/make_ce
+++ b/util/ceg/util/make_ce
@@ -12,7 +12,7 @@ DEF = $(CEG)/defaults
 
 IFILES	= -I. -I$(SRC_DIR) -I.. -I$(AS) -I$(EM)/h -I$(EM)/modules/h -I../back -I$(SRC_HOME)/mach
 
-CFLAGS = $(COPTIONS) $(IFILES)
+CFLAGS = $(COPTIONS) $(IFILES) -DNDEBUG
 
 .c.$(SUF):
 	cd ce ; $(CC) -c $(CFLAGS) ../$*.c ; cd ..
diff --git a/util/ceg/util/make_ceg b/util/ceg/util/make_ceg
index 0a9a4d481..0839b2c71 100644
--- a/util/ceg/util/make_ceg
+++ b/util/ceg/util/make_ceg
@@ -14,7 +14,7 @@ DEF = $(CEG)/defaults
 
 IFILES	= -I. -I$(SRC_DIR) -I.. -I$(AS) -I$(Em) -I$(TARGET_HOME)/h -I$(TARGET_HOME)/modules/h -I../back
 
-CFLAGS = $(COPTIONS) $(IFILES)
+CFLAGS = $(COPTIONS) $(IFILES) -DNDEBUG
 LDFLAGS = $(LDOPTIONS)
 
 CEG_LIBS = $(TARGET_HOME)/modules/lib/liballoc.$(LIBSUF)\