Index: include/clang/Analysis/CloneDetection.h
===================================================================
--- include/clang/Analysis/CloneDetection.h
+++ include/clang/Analysis/CloneDetection.h
@@ -28,6 +28,7 @@
 class VarDecl;
 class ASTContext;
 class CompoundStmt;
+class FileEntry;
 
 /// \brief Identifies a list of statements.
 ///
@@ -278,6 +279,13 @@
   void findSuspiciousClones(std::vector<SuspiciousClonePair> &Result,
                             unsigned MinGroupComplexity);
 
+  /// \brief Get the FileEntry for Decl.
+  /// \param Decl.
+  /// \param SourceManager.
+  /// \return FileEntry.
+  const clang::FileEntry *getFileEntryForDecl(const clang::Decl *decl, 
+                                              clang::SourceManager *sourceManager);
+
 private:
   /// Stores all encountered StmtSequences alongside their CloneSignature.
   std::vector<std::pair<CloneSignature, StmtSequence>> Sequences;
Index: lib/Analysis/CloneDetection.cpp
===================================================================
--- lib/Analysis/CloneDetection.cpp
+++ lib/Analysis/CloneDetection.cpp
@@ -602,8 +602,24 @@
 };
 } // end anonymous namespace
 
+const clang::FileEntry *CloneDetector::getFileEntryForDecl(const clang::Decl *decl, 
+                                                           clang::SourceManager * sourceManager) {
+    if (!decl || !sourceManager)
+      return nullptr;
+    clang::SourceLocation sLoc = decl->getLocation();
+    clang::FileID fileID = sourceManager->getFileID(sLoc);
+    return sourceManager->getFileEntryForID(fileID);
+}
+
 void CloneDetector::analyzeCodeBody(const Decl *D) {
   assert(D);
+  assert(D->getASTContext());
+  const clang::FileEntry *fileEntry = getFileEntryForDecl(D, 
+                                        &D->getASTContext().getSourceManager());
+  // Filter Qt's Meta-Object Compiler (moc) http://doc.qt.io/qt-5/moc.html
+  // The false positive is too high for moc_XXX.cpp during scan-build
+  if (fileEntry && std::string(fileEntry->getName()).find("moc_") == 0)
+    return;
   assert(D->hasBody());
   CloneSignatureGenerator Generator(*this, D->getASTContext());
   Generator.consumeCodeBody(D->getBody());