diff --git a/srcpkgs/kauth/patches/crossbuild-support.patch b/srcpkgs/kauth/patches/crossbuild-support.patch
index ca12ddf4d31..cee60093109 100644
--- a/srcpkgs/kauth/patches/crossbuild-support.patch
+++ b/srcpkgs/kauth/patches/crossbuild-support.patch
@@ -13,3 +13,33 @@ index 0895e60..59fe53b 100644
      else()
          include("${CMAKE_CURRENT_LIST_DIR}/KF5AuthToolsTargets.cmake")
      endif()
+--- cmake/KF5AuthMacros.cmake	2018-08-26 14:57:02.703186769 +0200
++++ cmake/KF5AuthMacros.cmake	2018-08-26 14:58:26.469054620 +0200
+@@ -63,12 +63,21 @@
+     set(_output ${CMAKE_CURRENT_BINARY_DIR}/${HELPER_ID}.policy)
+     get_filename_component(_input ${ACTIONS_FILE} ABSOLUTE)
+ 
+-    add_custom_command(OUTPUT ${_output}
+-                       COMMAND KF5::kauth-policy-gen ${_input} ${_output}
+-                       MAIN_DEPENDENCY ${_input}
+-                       WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+-                       COMMENT "Generating ${HELPER_ID}.policy"
+-                       DEPENDS KF5::kauth-policy-gen)
++    if(CMAKE_CROSSCOMPILING)
++        add_custom_command(OUTPUT ${_output}
++                           COMMAND "/usr/lib/libexec/kauth/kauth-policy-gen" ${_input} ${_output}
++                           MAIN_DEPENDENCY ${_input}
++                           WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
++                           COMMENT "Generating ${HELPER_ID}.policy"
++                           DEPENDS KF5::kauth-policy-gen)
++    else()
++        add_custom_command(OUTPUT ${_output}
++                           COMMAND KF5::kauth-policy-gen ${_input} ${_output}
++                           MAIN_DEPENDENCY ${_input}
++                           WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
++                           COMMENT "Generating ${HELPER_ID}.policy"
++                           DEPENDS KF5::kauth-policy-gen)
++    endif()
+     add_custom_target(${HELPER_ID}.policy-customtarget ALL COMMENT "actions for ${HELPER_ID}" DEPENDS ${_output})
+ 
+     install(FILES ${_output} DESTINATION ${KAUTH_POLICY_FILES_INSTALL_DIR})
diff --git a/srcpkgs/kauth/template b/srcpkgs/kauth/template
index 55702fd65de..93d3763d851 100644
--- a/srcpkgs/kauth/template
+++ b/srcpkgs/kauth/template
@@ -1,7 +1,7 @@
 # Template file for 'kauth'
 pkgname=kauth
 version=5.49.0
-revision=1
+revision=2
 build_style=cmake
 hostmakedepends="extra-cmake-modules pkg-config"
 makedepends="kcoreaddons-devel polkit-qt5-devel"