diff --git a/CMakeLists.txt b/CMakeLists.txt
index 68f49f339..a2d298ef9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -327,7 +327,7 @@ set(PACKAGE "libwebsockets")
 set(CPACK_PACKAGE_NAME "${PACKAGE}")
 set(CPACK_PACKAGE_VERSION_MAJOR "4")
 set(CPACK_PACKAGE_VERSION_MINOR "0")
-set(CPACK_PACKAGE_VERSION_PATCH "14")
+set(CPACK_PACKAGE_VERSION_PATCH "15")
 set(CPACK_PACKAGE_RELEASE 1)
 set(CPACK_GENERATOR "RPM")
 set(CPACK_PACKAGE_VERSION "${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}.${CPACK_PACKAGE_VERSION_PATCH}")
diff --git a/plugins/protocol_post_demo.c b/plugins/protocol_post_demo.c
index f0e266608..86157c29d 100644
--- a/plugins/protocol_post_demo.c
+++ b/plugins/protocol_post_demo.c
@@ -80,7 +80,7 @@ file_upload_cb(void *data, const char *name, const char *filename,
 		 * simple demo use a fixed name so we don't have to deal with
 		 * attacks  */
 #if !defined(LWS_WITH_ESP32)
-		pss->fd = (lws_filefd_type)(long long)lws_open("/tmp/post-file",
+		pss->fd = (lws_filefd_type)(lws_intptr_t)lws_open("/tmp/post-file",
 			       O_CREAT | O_TRUNC | O_RDWR, 0600);
 #endif
 		break;