diff --git a/Build.md b/Build.md
index 5503dbd..9f6823f 100644
--- a/Build.md
+++ b/Build.md
@@ -33,6 +33,8 @@ cmake --build Release
 
 The resulting executable will be `Release/ccls`.
 
+If you compile ccls with GCC 8.2.1, append `-DCMAKE_CXX_FLAGS=-fno-gnu-unique`. See https://github.com/MaskRay/ccls/issues/363#issuecomment-482625854 for details.
+
 See below for other CMake options available for customizing the build, hints
 for your system, as well as methods of obtaining and locating Clang+LLVM.