diff --git a/regressions/ck_epoch/validate/Makefile b/regressions/ck_epoch/validate/Makefile
index edfa545..59b2252 100644
--- a/regressions/ck_epoch/validate/Makefile
+++ b/regressions/ck_epoch/validate/Makefile
@@ -8,7 +8,7 @@ all: $(OBJECTS)
 check: all
 	./ck_stack $(CORES) 1
 	./ck_epoch_synchronize $(HALF) $(HALF) 1
-	./ck_epoch_poll $(CORES) 1
+	./ck_epoch_poll $(CORES) 1 1
 
 ck_epoch_synchronize: ck_epoch_synchronize.c ../../../include/ck_stack.h ../../../include/ck_epoch.h ../../../src/ck_epoch.c
 	$(CC) $(CFLAGS) -o ck_epoch_synchronize ck_epoch_synchronize.c ../../../src/ck_epoch.c