diff --git a/src/lC_common_h.jl b/src/lC_common_h.jl
index f694f05..6a8c0cb 100644
--- a/src/lC_common_h.jl
+++ b/src/lC_common_h.jl
@@ -693,7 +693,8 @@ const CURLOPT_DNS_SHUFFLE_ADDRESSES = (UInt32)(275)
 const CURLOPT_TLS13_CIPHERS = (UInt32)(10276)
 const CURLOPT_PROXY_TLS13_CIPHERS = (UInt32)(10277)
 const CURLOPT_DISALLOW_USERNAME_IN_URL = (UInt32)(278)
-const CURLOPT_LASTENTRY = (UInt32)(279)
+const CURLOPT_MAXAGE_CONN = UInt32(288)
+const CURLOPT_LASTENTRY = (UInt32)(10299)
 # end enum CURLoption
 
 const CURLOPT_XFERINFODATA = CURLOPT_PROGRESSDATA
diff --git a/src/lC_exports_h.jl b/src/lC_exports_h.jl
index 52468d7..7511574 100644
--- a/src/lC_exports_h.jl
+++ b/src/lC_exports_h.jl
@@ -1249,3 +1249,4 @@ export CURL_CSELECT_OUT
 export CURL_CSELECT_ERR
 export CURL_PUSH_OK
 export CURL_PUSH_DENY
+export CURLOPT_MAXAGE_CONN