diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5139e2e..0c2413d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -248,7 +248,6 @@ set_target_properties( tint2 PROPERTIES LINK_FLAGS "-pthread -fno-strict-aliasin
 install( TARGETS tint2 DESTINATION bin )
 install( FILES tint2.svg DESTINATION ${CMAKE_INSTALL_DATADIR}/icons/hicolor/scalable/apps )
 install( FILES tint2.desktop DESTINATION ${CMAKE_INSTALL_DATADIR}/applications )
-install( CODE "execute_process(COMMAND gtk-update-icon-cache -f -t ${CMAKE_INSTALL_FULL_DATADIR}/icons/hicolor WORKING_DIRECTORY ${CMAKE_INSTALL_PREFIX})" )
 install( FILES themes/tint2rc DESTINATION ${CMAKE_INSTALL_FULL_SYSCONFDIR}/xdg/tint2 )
 install( FILES default_icon.png DESTINATION ${CMAKE_INSTALL_DATADIR}/tint2 )
 install( FILES AUTHORS ChangeLog README.md doc/tint2.md DESTINATION ${docdir} )
diff --git a/src/tint2conf/CMakeLists.txt b/src/tint2conf/CMakeLists.txt
index 0e77857..f5a937a 100644
--- a/src/tint2conf/CMakeLists.txt
+++ b/src/tint2conf/CMakeLists.txt
@@ -68,4 +68,3 @@ add_subdirectory(po)
 install( TARGETS tint2conf DESTINATION bin )
 install( FILES tint2conf.svg DESTINATION ${CMAKE_INSTALL_DATADIR}/icons/hicolor/scalable/apps )
 install( FILES tint2conf.desktop DESTINATION ${CMAKE_INSTALL_DATADIR}/applications )
-install( CODE "execute_process(COMMAND gtk-update-icon-cache -f -t ${CMAKE_INSTALL_FULL_DATADIR}/icons/hicolor WORKING_DIRECTORY ${CMAKE_INSTALL_PREFIX})" )