diff --git a/tools/testing/selftests/bpf/trace_helpers.c b/tools/testing/selftests/bpf/trace_helpers.c
index 1bfd881c0e07ab14281b9e07cdb94f257a2414b6..2d742fdac6b9770678cda3cb6ede4831cf807a2d 100644
--- a/tools/testing/selftests/bpf/trace_helpers.c
+++ b/tools/testing/selftests/bpf/trace_helpers.c
@@ -249,7 +249,7 @@ out:
 #ifdef PROCMAP_QUERY
 int env_verbosity __weak = 0;
 
-int procmap_query(int fd, const void *addr, __u32 query_flags, size_t *start, size_t *offset, int *flags)
+static int procmap_query(int fd, const void *addr, __u32 query_flags, size_t *start, size_t *offset, int *flags)
 {
 	char path_buf[PATH_MAX], build_id_buf[20];
 	struct procmap_query q;
@@ -293,7 +293,7 @@ int procmap_query(int fd, const void *addr, __u32 query_flags, size_t *start, si
 	return 0;
 }
 #else
-int procmap_query(int fd, const void *addr, size_t *start, size_t *offset, int *flags)
+static int procmap_query(int fd, const void *addr, __u32 query_flags, size_t *start, size_t *offset, int *flags)
 {
 	return -EOPNOTSUPP;
 }