diff --git a/CMakeLists.txt b/CMakeLists.txt
index 690b8b3..cd9c0b3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -97,6 +97,7 @@ ExternalProject_Add (libcurl_Project
     --without-libssh2
     --without-librtmp
     --without-nghttp2
+    --without-libidn2
   BUILD_COMMAND ${CMD} make
   INSTALL_COMMAND ${CMD} make install
   BUILD_IN_SOURCE 1