diff --git a/compiler-rt/test/asan/TestCases/Linux/interface_symbols_linux.cpp b/compiler-rt/test/asan/TestCases/Linux/interface_symbols_linux.cpp
--- a/compiler-rt/test/asan/TestCases/Linux/interface_symbols_linux.cpp
+++ b/compiler-rt/test/asan/TestCases/Linux/interface_symbols_linux.cpp
@@ -1,4 +1,6 @@
 // Check the presence of interface symbols in compiled file.
+// If you're changing this file, please also change
+// ../Darwin/interface_symbols_darwin.cpp
 
 // RUN: %clangxx -x c++-header -o - -E %p/../../../../lib/asan/asan_interface.inc  \
 // RUN:  | sed "s/INTERFACE_FUNCTION/\nINTERFACE_FUNCTION/g" >  %t.asan_interface.inc