diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c
index 68c720591d19..651fec4556ae 100644
--- a/kernel/bpf/helpers.c
+++ b/kernel/bpf/helpers.c
@@ -517,7 +517,7 @@ static int __bpf_strtoll(const char *buf, size_t buf_len, u64 flags,
 }
 
 BPF_CALL_4(bpf_strtol, const char *, buf, size_t, buf_len, u64, flags,
-	   long *, res)
+	   s64 *, res)
 {
 	long long _res;
 	int err;
@@ -542,7 +542,7 @@ const struct bpf_func_proto bpf_strtol_proto = {
 };
 
 BPF_CALL_4(bpf_strtoul, const char *, buf, size_t, buf_len, u64, flags,
-	   unsigned long *, res)
+	   u64 *, res)
 {
 	unsigned long long _res;
 	bool is_negative;