diff --git i/Makefile.PL w/Makefile.PL
index 713656a..bdf1a9e 100644
--- i/Makefile.PL
+++ w/Makefile.PL
@@ -127,7 +127,7 @@ if (!defined($curl_h)) {
     close H;
 
     for my $e (sort @syms) {
-       if($e =~ /(OBSOLETE|^CURL_EXTERN|^CURL_STRICTER\z|^CURL_DID_MEMORY_FUNC_TYPEDEFS\z|_LAST\z|_LASTENTRY\z|^CURLINC_)/) {
+       if($e =~ /(OBSOLETE|^CURL_EXTERN|^CURL_STRICTER\z|^CURL_WIN32\z|^CURLOPT\z|^CURL_DID_MEMORY_FUNC_TYPEDEFS\z|_LAST\z|_LASTENTRY\z|^CURLINC_)/) {
           next;
        }
        my ($group) = $e =~ m/^([^_]+_)/;
diff --git i/lib/WWW/Curl/Easy.pm w/lib/WWW/Curl/Easy.pm
index c680563..3aa904c 100644
--- i/lib/WWW/Curl/Easy.pm
+++ w/lib/WWW/Curl/Easy.pm
@@ -154,7 +154,6 @@ CURL_VERSION_TLSAUTH_SRP
 CURL_VERSION_UNICODE
 CURL_VERSION_UNIX_SOCKETS
 CURL_VERSION_ZSTD
-CURL_WIN32
 CURL_WRITEFUNC_PAUSE
 CURL_ZERO_TERMINATED
 CURLVERSION_EIGHTH
@@ -982,7 +981,6 @@ CURLALTSVC_H1
 CURLALTSVC_H2
 CURLALTSVC_H3
 CURLALTSVC_READONLYFILE
-CURLOPT
 );
 
 $WWW::Curl::Easy::headers = "";