diff --git a/src/tools/clangbackend/ipcsource/translationunit.cpp b/src/tools/clangbackend/ipcsource/translationunit.cpp
index da99082c18c..be837e60fe7 100644
--- a/src/tools/clangbackend/ipcsource/translationunit.cpp
+++ b/src/tools/clangbackend/ipcsource/translationunit.cpp
@@ -324,7 +324,7 @@ void TranslationUnit::updateIncludeFilePaths() const
     d->translationUnits.addWatchedFiles(d->dependedFilePaths);
 }
 
-int TranslationUnit::defaultOptions()
+uint TranslationUnit::defaultOptions()
 {
     return CXTranslationUnit_CacheCompletionResults
          | CXTranslationUnit_PrecompiledPreamble
diff --git a/src/tools/clangbackend/ipcsource/translationunit.h b/src/tools/clangbackend/ipcsource/translationunit.h
index 6f19ba9ebd9..1717988e2fc 100644
--- a/src/tools/clangbackend/ipcsource/translationunit.h
+++ b/src/tools/clangbackend/ipcsource/translationunit.h
@@ -116,7 +116,7 @@ private:
     void reparseTranslationUnit() const;
     void reparseTranslationUnitIfFilesAreChanged() const;
     void updateIncludeFilePaths() const;
-    static int defaultOptions();
+    static uint defaultOptions();
     static void includeCallback(CXFile included_file,
                                 CXSourceLocation * /*inclusion_stack*/,
                                 unsigned /*include_len*/,
diff --git a/src/tools/clangbackend/ipcsource/unsavedfiles.cpp b/src/tools/clangbackend/ipcsource/unsavedfiles.cpp
index 9e9a522d52a..40e4925fe12 100644
--- a/src/tools/clangbackend/ipcsource/unsavedfiles.cpp
+++ b/src/tools/clangbackend/ipcsource/unsavedfiles.cpp
@@ -106,9 +106,9 @@ void UnsavedFiles::clear()
     updateLastChangeTimePoint();
 }
 
-int UnsavedFiles::count() const
+uint UnsavedFiles::count() const
 {
-    return d->cxUnsavedFiles.size();
+    return uint(d->cxUnsavedFiles.size());
 }
 
 CXUnsavedFile *UnsavedFiles::cxUnsavedFiles() const
diff --git a/src/tools/clangbackend/ipcsource/unsavedfiles.h b/src/tools/clangbackend/ipcsource/unsavedfiles.h
index 9104bc87b33..5df4920b333 100644
--- a/src/tools/clangbackend/ipcsource/unsavedfiles.h
+++ b/src/tools/clangbackend/ipcsource/unsavedfiles.h
@@ -64,7 +64,7 @@ public:
     void remove(const QVector<FileContainer> &fileContainers);
     void clear();
 
-    int count() const;
+    uint count() const;
 
     CXUnsavedFile *cxUnsavedFiles() const;
     const std::vector<CXUnsavedFile> &cxUnsavedFileVector() const;