diff --git a/libartbase/base/file_utils.h b/libartbase/base/file_utils.h
index c8eca59..88dcbea 100644
--- a/libartbase/base/file_utils.h
+++ b/libartbase/base/file_utils.h
@@ -75,7 +75,7 @@
 //          ReplaceFileExtension("foo", "abc") == "foo.abc"
 std::string ReplaceFileExtension(const std::string& filename, const std::string& new_extension);
 
-// Return whether the location is on apex/com.android.runtime
+// Return whether the location is on /apex/com.android.runtime
 bool LocationIsOnRuntimeModule(const char* location);
 
 // Return whether the location is on system (i.e. android root).
@@ -84,6 +84,9 @@
 // Return whether the location is on system/framework (i.e. android_root/framework).
 bool LocationIsOnSystemFramework(const char* location);
 
+// Return whether the location is on /apex/.
+bool LocationIsOnApex(const char* location);
+
 // dup(2), except setting the O_CLOEXEC flag atomically, when possible.
 int DupCloexec(int fd);