diff --git a/regressions/ck_rwcohort/validate/Makefile b/regressions/ck_rwcohort/validate/Makefile
index af9826d..33e3a29 100644
--- a/regressions/ck_rwcohort/validate/Makefile
+++ b/regressions/ck_rwcohort/validate/Makefile
@@ -5,13 +5,13 @@ OBJECTS=ck_neutral ck_rp ck_wp
 all: $(OBJECTS)
 
 ck_neutral: ck_neutral.c ../../../include/ck_rwcohort.h
-	$(CC) $(CFLAGS) -o ck_neutral ck_neutral.c -g
+	$(CC) $(CFLAGS) -o ck_neutral ck_neutral.c
 
 ck_rp: ck_rp.c ../../../include/ck_rwcohort.h
-	$(CC) $(CFLAGS) -o ck_rp ck_rp.c -g
+	$(CC) $(CFLAGS) -o ck_rp ck_rp.c
 
 ck_wp: ck_wp.c ../../../include/ck_rwcohort.h
-	$(CC) $(CFLAGS) -o ck_wp ck_wp.c -g
+	$(CC) $(CFLAGS) -o ck_wp ck_wp.c
 
 check: all
 	./ck_neutral `expr $(CORES) / 2` 2 1