diff --git a/man2/bpf.2 b/man2/bpf.2
index d05b73ec2..84d1b62e5 100644
--- a/man2/bpf.2
+++ b/man2/bpf.2

@@ -169,34 +169,34 @@ commands:
 .EX
 union bpf_attr {
     struct {    /* Used by BPF_MAP_CREATE */
-        __u32         map_type;
-        __u32         key_size;    /* size of key in bytes */
-        __u32         value_size;  /* size of value in bytes */
-        __u32         max_entries; /* maximum number of entries
+        uint32_t      map_type;
+        uint32_t      key_size;    /* size of key in bytes */
+        uint32_t      value_size;  /* size of value in bytes */
+        uint32_t      max_entries; /* maximum number of entries
                                       in a map */
     };

     struct {    /* Used by BPF_MAP_*_ELEM and BPF_MAP_GET_NEXT_KEY
                    commands */
-        __u32         map_fd;
+        uint32_t      map_fd;
         __aligned_u64 key;
         union {
             __aligned_u64 value;
             __aligned_u64 next_key;
         };
-        __u64         flags;
+        uint64_t      flags;
     };

     struct {    /* Used by BPF_PROG_LOAD */
-        __u32         prog_type;
-        __u32         insn_cnt;
+        uint32_t      prog_type;
+        uint32_t      insn_cnt;