diff --git a/doc/building.dox b/doc/building.dox
index 690061bbf..7971b4ac2 100644
--- a/doc/building.dox
+++ b/doc/building.dox
@@ -837,6 +837,10 @@ configured and @ref building-corrade-cross-android "Corrade built for Android".
 CMake 3.7 is required, as it has Android support builtin. The supported
 toolchain is now Clang with libc++, GCC is not supported anymore.
 
+@attention
+    You might want to grab at least CMake 3.9.2 instead of just 3.7, as it
+    [fixes an issue with the Clang toolchain](https://gitlab.kitware.com/cmake/cmake/issues/17253).
+
 Create a build directory and run `cmake` and the build command in it. Set
 `CMAKE_SYSTEM_NAME` to `Android` to enable the crosscompilation,
 `CMAKE_ANDROID_NDK_TOOLCHAIN_VERSION` and `CMAKE_ANDROID_STL_TYPE` to use Clang
diff --git a/src/Magnum/Trade/PhongMaterialData.h b/src/Magnum/Trade/PhongMaterialData.h
index a1e3558f6..50650a175 100644
--- a/src/Magnum/Trade/PhongMaterialData.h
+++ b/src/Magnum/Trade/PhongMaterialData.h
@@ -164,10 +164,10 @@ class MAGNUM_EXPORT PhongMaterialData: public AbstractMaterialData {
 
 CORRADE_ENUMSET_OPERATORS(PhongMaterialData::Flags)
 
-/** @debugoperatorclassenum{PhongMaterialData::Flag} */
+/** @debugoperatorclassenum{PhongMaterialData,PhongMaterialData::Flag} */
 MAGNUM_EXPORT Debug& operator<<(Debug& debug, PhongMaterialData::Flag value);
 
-/** @debugoperatorclassenum{PhongMaterialData::Flags} */
+/** @debugoperatorclassenum{PhongMaterialData,PhongMaterialData::Flags} */
 MAGNUM_EXPORT Debug& operator<<(Debug& debug, PhongMaterialData::Flags value);
 
 /* Ugly as hell. */