diff --git a/src/tools/clangbackend/ipcsource/diagnostic.h b/src/tools/clangbackend/ipcsource/diagnostic.h
index db0950c7527..5db8ad45bfd 100644
--- a/src/tools/clangbackend/ipcsource/diagnostic.h
+++ b/src/tools/clangbackend/ipcsource/diagnostic.h
@@ -35,6 +35,8 @@
 
 #include <clang-c/Index.h>
 
+#include <vector>
+
 class Utf8String;
 
 namespace ClangBackEnd {
diff --git a/src/tools/clangbackend/ipcsource/translationunit.cpp b/src/tools/clangbackend/ipcsource/translationunit.cpp
index eb5e265b8bd..da99082c18c 100644
--- a/src/tools/clangbackend/ipcsource/translationunit.cpp
+++ b/src/tools/clangbackend/ipcsource/translationunit.cpp
@@ -297,7 +297,7 @@ void TranslationUnit::reparseTranslationUnitIfFilesAreChanged() const
 }
 
 void TranslationUnit::includeCallback(CXFile included_file,
-                                      CXSourceLocation */*inclusion_stack*/,
+                                      CXSourceLocation * /*inclusion_stack*/,
                                       unsigned /*include_len*/,
                                       CXClientData clientData)
 {
diff --git a/src/tools/clangbackend/ipcsource/translationunit.h b/src/tools/clangbackend/ipcsource/translationunit.h
index 768654e0bee..6f19ba9ebd9 100644
--- a/src/tools/clangbackend/ipcsource/translationunit.h
+++ b/src/tools/clangbackend/ipcsource/translationunit.h
@@ -118,7 +118,7 @@ private:
     void updateIncludeFilePaths() const;
     static int defaultOptions();
     static void includeCallback(CXFile included_file,
-                                CXSourceLocation */*inclusion_stack*/,
+                                CXSourceLocation * /*inclusion_stack*/,
                                 unsigned /*include_len*/,
                                 CXClientData clientData);
     UnsavedFiles &unsavedFiles() const;
diff --git a/src/tools/clangbackend/ipcsource/translationunits.h b/src/tools/clangbackend/ipcsource/translationunits.h
index 186e00f2582..3e9eee49eb8 100644
--- a/src/tools/clangbackend/ipcsource/translationunits.h
+++ b/src/tools/clangbackend/ipcsource/translationunits.h
@@ -38,6 +38,7 @@
 
 #include <QVector>
 
+#include <functional>
 #include <vector>
 
 namespace ClangBackEnd {