Help/CMAKE_GLOBAL_AUTORCC_TARGET_NAME: fix link reference

Help/variable/CMAKE_GLOBAL_AUTORCC_TARGET_NAME.rst

@@ -9,7 +9,7 @@ When :variable:`CMAKE_GLOBAL_AUTORCC_TARGET` is enabled, a global custom target
 named ``autorcc`` is created.  :variable:`CMAKE_GLOBAL_AUTORCC_TARGET_NAME`
 allows to set a different name for that target.
 
-By default :variable:`CMAKE_GLOBAL_AUTOGEN_TARGET_NAME` is unset.
+By default :variable:`CMAKE_GLOBAL_AUTORCC_TARGET_NAME` is unset.
 
 See the :manual:`cmake-qt(7)` manual for more information on using CMake
 with Qt.