diff --git a/cmake/QtModuleDependencies.cmake.in b/cmake/QtModuleDependencies.cmake.in
index 4a82ad3bd39..ff84817ecf9 100644
--- a/cmake/QtModuleDependencies.cmake.in
+++ b/cmake/QtModuleDependencies.cmake.in
@@ -32,16 +32,20 @@ endif()
 set(__qt_@target@_third_party_deps "@third_party_deps@")
 @third_party_deps_extra_info@
 _qt_internal_find_third_party_dependencies("@target@" __qt_@target@_third_party_deps)
+unset(__qt_@target@_third_party_deps)
 
 # Find Qt tool package.
 set(__qt_@target@_tool_deps "@main_module_tool_deps@")
 _qt_internal_find_tool_dependencies("@target@" __qt_@target@_tool_deps)
+unset(__qt_@target@_tool_deps)
 
 # note: target_deps example: "Qt6Core\;5.12.0;Qt6Gui\;5.12.0"
 set(__qt_@target@_target_deps "@target_deps@")
 set(__qt_@target@_find_dependency_paths "${CMAKE_CURRENT_LIST_DIR}/.." "${_qt_cmake_dir}")
 _qt_internal_find_qt_dependencies("@target@" __qt_@target@_target_deps
                                   __qt_@target@_find_dependency_paths)
+unset(__qt_@target@_target_deps)
+unset(__qt_@target@_find_dependency_paths)
 
 set(_@QT_CMAKE_EXPORT_NAMESPACE@@target@_MODULE_DEPENDENCIES "@qt_module_dependencies@")
 set(@INSTALL_CMAKE_NAMESPACE@@target@_FOUND TRUE)
diff --git a/cmake/QtPluginDependencies.cmake.in b/cmake/QtPluginDependencies.cmake.in
index a02c31e84eb..d5d3398e9e3 100644
--- a/cmake/QtPluginDependencies.cmake.in
+++ b/cmake/QtPluginDependencies.cmake.in
@@ -6,6 +6,7 @@ set(@target@_FOUND TRUE)
 # note: _third_party_deps example: "ICU\\;FALSE\\;1.0\\;i18n uc data;ZLIB\\;FALSE\\;\\;"
 set(__qt_@target@_third_party_deps "@third_party_deps@")
 _qt_internal_find_third_party_dependencies("@target@" __qt_@target@_third_party_deps)
+unset(__qt_@target@_third_party_deps)
 
 set(__qt_use_no_default_path_for_qt_packages "NO_DEFAULT_PATH")
 if(QT_DISABLE_NO_DEFAULT_PATH_IN_QT_PACKAGES)
@@ -17,6 +18,8 @@ set(__qt_@target@_target_deps "@target_deps@")
 set(__qt_@target@_find_dependency_paths "@find_dependency_paths@")
 _qt_internal_find_qt_dependencies("@target@" __qt_@target@_target_deps
                                   __qt_@target@_find_dependency_paths)
+unset(__qt_@target@_target_deps)
+unset(__qt_@target@_find_dependency_paths)
 
 if(__qt_${target}_missing_deps)
     set(@target@_FOUND FALSE)