diff --git a/cpumf/defines.h b/cpumf/defines.h
deleted file mode 100644
index 62a74d71..00000000
--- a/cpumf/defines.h
+++ /dev/null
@@ -1,18 +0,0 @@
-/*
- * Defines for CPU Measurement Facility Characteristics
- *
- * Copyright IBM Corp. 2020
- *
- * s390-tools is free software; you can redistribute it and/or modify
- * it under the terms of the MIT license. See LICENSE for details.
- */
-
-#ifndef DEFINES_H
-#define	DEFINES_H
-
-#define	PERF_SFB_SIZE	"/sys/module/kernel/parameters/cpum_sfb_size"
-#define	PERF_PATH	"/sys/bus/event_source/devices/"
-#define	PERF_SF		"cpum_sf"
-#define	PERF_CF		"cpum_cf"
-
-#endif