diff --git a/src/corelib/configure.cmake b/src/corelib/configure.cmake
index 1234567..abcdefg 100644
--- a/src/corelib/configure.cmake
+++ b/src/corelib/configure.cmake
@@ -830,6 +830,6 @@ qt_feature("windows-ioring" PRIVATE
     LABEL "Windows I/O Ring"
     AUTODETECT WIN32
-    CONDITION TEST_windows_ioring
+    CONDITION TEST_windows_ioring AND CMAKE_SIZEOF_VOID_P EQUAL 8
 )
 qt_feature("windows-ioring-skip-builder-param-checks" PRIVATE
     LABEL "Windows I/O Ring IORING_CREATE_SKIP_BUILDER_PARAM_CHECKS"