Index: clang-tidy/google/GlobalVariableDeclarationCheck.cpp
===================================================================
--- clang-tidy/google/GlobalVariableDeclarationCheck.cpp
+++ clang-tidy/google/GlobalVariableDeclarationCheck.cpp
@@ -72,7 +72,7 @@
       this);
   Finder->addMatcher(varDecl(hasGlobalStorage(), hasType(isConstQualified()),
                              unless(isLocalVariable()),
-                             unless(matchesName("::k[A-Z]")))
+                             unless(matchesName("::(k[A-Z]|[A-Z]{2,})")))
                          .bind("global_const"),
                      this);
 }
Index: test/clang-tidy/google-objc-global-variable-declaration.m
===================================================================
--- test/clang-tidy/google-objc-global-variable-declaration.m
+++ test/clang-tidy/google-objc-global-variable-declaration.m
@@ -30,6 +30,7 @@
 // CHECK-FIXES: static NSString* const k_Alpha = @"SecondNotAlpha";
 
 static NSString* const kGood = @"hello";
+static NSString* const XYGood = @"hello";
 static NSString* gMyIntGood = 0;
 
 @implementation Foo