diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index b06fa466b57c..4045de9e3156 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -3251,7 +3251,7 @@ union bpf_attr {
  *	Return
  *		The id is returned or 0 in case the id could not be retrieved.
  *
- * int bpf_ringbuf_output(void *ringbuf, void *data, u64 size, u64 flags)
+ * long bpf_ringbuf_output(void *ringbuf, void *data, u64 size, u64 flags)
  * 	Description
  * 		Copy *size* bytes from *data* into a ring buffer *ringbuf*.
  * 		If **BPF_RB_NO_WAKEUP** is specified in *flags*, no notification
diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index cd298b8d64ee..7f8d3ec5e7b6 100644
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -3161,7 +3161,7 @@ union bpf_attr {
  *	Return
  *		The id is returned or 0 in case the id could not be retrieved.
  *
- * int bpf_ringbuf_output(void *ringbuf, void *data, u64 size, u64 flags)
+ * long bpf_ringbuf_output(void *ringbuf, void *data, u64 size, u64 flags)
  * 	Description
  * 		Copy *size* bytes from *data* into a ring buffer *ringbuf*.
  * 		If **BPF_RB_NO_WAKEUP** is specified in *flags*, no notification