diff --git a/tools/CIndex/CIndex.cpp b/tools/CIndex/CIndex.cpp
index 28a86e7..19e82fc 100644
--- a/tools/CIndex/CIndex.cpp
+++ b/tools/CIndex/CIndex.cpp
@@ -718,6 +718,13 @@
   return extent;  
 }
 
+const char *clang_getDeclSource(CXDecl AnonDecl) {
+  assert(AnonDecl && "Passed null CXDecl");
+  FileEntry *FEnt = static_cast<FileEntry *>(clang_getDeclSourceFile(AnonDecl));
+  assert(FEnt && "Cannot find FileEntry for Decl");
+  return clang_getFileName(FEnt);
+}
+
 static const FileEntry *getFileEntryFromSourceLocation(SourceManager &SMgr,
                                                        SourceLocation SLoc) {
   FileID FID;
diff --git a/tools/CIndex/CIndex.exports b/tools/CIndex/CIndex.exports
index 4feab15..3326087 100644
--- a/tools/CIndex/CIndex.exports
+++ b/tools/CIndex/CIndex.exports
@@ -25,6 +25,7 @@
 _clang_getDeclExtent
 _clang_getDeclLine
 _clang_getDeclExtent
+_clang_getDeclSource
 _clang_getDeclSourceFile
 _clang_getDeclSpelling
 _clang_getDeclarationName