1 files changed, 3 insertions, 1 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/rules/cpp/CppCompileAction.java b/src/main/java/com/google/devtools/build/lib/rules/cpp/CppCompileAction.java
index 74d1d3cdb0..1b1884ce8d 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/cpp/CppCompileAction.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/cpp/CppCompileAction.java
@@ -110,6 +110,8 @@ public class CppCompileAction extends AbstractAction
         }
       };
 
+  private static final PathFragment BUILD_PATH_FRAGMENT = PathFragment.create("BUILD");
+
   private static final int VALIDATION_DEBUG = 0;  // 0==none, 1==warns/errors, 2==all
   private static final boolean VALIDATION_DEBUG_WARN = VALIDATION_DEBUG >= 1;
 
@@ -948,7 +950,7 @@ public class CppCompileAction extends AbstractAction
     // Still not found: see if it is in a subdir of a declared package.
     Path root = input.getRoot().getPath();
     for (Path dir = input.getPath().getParentDirectory();;) {
-      if (dir.getRelative("BUILD").exists()) {
+      if (dir.getRelative(BUILD_PATH_FRAGMENT).exists()) {
         return false;  // Bad: this is a sub-package, not a subdir of a declared package.
       }
       dir = dir.getParentDirectory();