diff --git a/tools/perf/tests/bpf-script-test-prologue.c b/tools/perf/tests/bpf-script-test-prologue.c
index bd83d364cf30..91778b5c6125 100644
--- a/tools/perf/tests/bpf-script-test-prologue.c
+++ b/tools/perf/tests/bpf-script-test-prologue.c
@@ -20,6 +20,8 @@
 # undef if
 #endif
 
+typedef unsigned int __bitwise fmode_t;
+
 #define FMODE_READ		0x1
 #define FMODE_WRITE		0x2