diff --git a/unix/linux/types.go b/unix/linux/types.go
index 56f40b3..42ea25e 100644
--- a/unix/linux/types.go
+++ b/unix/linux/types.go
@@ -1039,7 +1039,7 @@
 // generated by:
 // perl -nlE '/^\s*(PERF_\w+)/ && say "$1 = C.$1"' /usr/include/linux/perf_event.h
 const (
-	PERF_FLAG_FD_CLOEXEF_TYPE_HARDWARE    = C.PERF_TYPE_HARDWARE
+	PERF_TYPE_HARDWARE                    = C.PERF_TYPE_HARDWARE
 	PERF_TYPE_SOFTWARE                    = C.PERF_TYPE_SOFTWARE
 	PERF_TYPE_TRACEPOINT                  = C.PERF_TYPE_TRACEPOINT
 	PERF_TYPE_HW_CACHE                    = C.PERF_TYPE_HW_CACHE
diff --git a/unix/ztypes_linux.go b/unix/ztypes_linux.go
index c5e829f..8d1429a 100644
--- a/unix/ztypes_linux.go
+++ b/unix/ztypes_linux.go
@@ -988,7 +988,7 @@
 )
 
 const (
-	PERF_FLAG_FD_CLOEXEF_TYPE_HARDWARE    = 0x0
+	PERF_TYPE_HARDWARE                    = 0x0
 	PERF_TYPE_SOFTWARE                    = 0x1
 	PERF_TYPE_TRACEPOINT                  = 0x2
 	PERF_TYPE_HW_CACHE                    = 0x3