diff --git a/programs/Makefile b/programs/Makefile
index 5ea05931..2b0b8a9a 100644
--- a/programs/Makefile
+++ b/programs/Makefile
@@ -251,7 +251,7 @@ test-mem: lz4 datagen fuzzer frametest fullbench
 	valgrind --leak-check=yes ./lz4 -9 -B5D -f tmp tmp2
 	valgrind --leak-check=yes ./lz4 -t tmp2
 	valgrind --leak-check=yes ./lz4 -bi1 tmp
-	valgrind --leak-check=yes ./fullbench -i1 tmp
+	valgrind --leak-check=yes ./fullbench -i1 tmp tmp2
 	./datagen -g256MB > tmp
 	valgrind --leak-check=yes ./lz4 -B4D -f -vq tmp $(VOID)
 	rm tmp*