diff --git a/util/ego/cs/Makefile b/util/ego/cs/Makefile
index 294efce22..90f638a08 100644
--- a/util/ego/cs/Makefile
+++ b/util/ego/cs/Makefile
@@ -1,6 +1,6 @@
 # CPPFLAGS=-DVERBOSE -DTRACE
 CPPFLAGS=-DVERBOSE
-CFLAGS=-O $(CPPFLAGS)
+CFLAGS=$(CPPFLAGS)
 LDFLAGS=-i
 LINTFLAGS=-phbac $(CPPFLAGS)