diff --git a/src/plugins/clangrefactoring/clangqueryprojectsfindfilter.cpp b/src/plugins/clangrefactoring/clangqueryprojectsfindfilter.cpp
index 93c4bbd841f..e22bc7e2ad6 100644
--- a/src/plugins/clangrefactoring/clangqueryprojectsfindfilter.cpp
+++ b/src/plugins/clangrefactoring/clangqueryprojectsfindfilter.cpp
@@ -71,7 +71,7 @@ void ClangQueryProjectsFindFilter::findAll(const QString &queryText, Core::FindF
 
     auto message = createMessage(queryText);
 
-    refactoringClient.setExpectedResultCount(message.sources().size());
+    refactoringClient.setExpectedResultCount(uint(message.sources().size()));
 
     server.requestSourceRangesAndDiagnosticsForQueryMessage(std::move(message));
 }
diff --git a/src/tools/clangpchmanagerbackend/source/clangpathwatcher.h b/src/tools/clangpchmanagerbackend/source/clangpathwatcher.h
index 9109aee15a6..ba990c6cf9d 100644
--- a/src/tools/clangpchmanagerbackend/source/clangpathwatcher.h
+++ b/src/tools/clangpchmanagerbackend/source/clangpathwatcher.h
@@ -145,7 +145,7 @@ unittest_public:
             return size + idPath.paths.size();
         };
 
-        return std::accumulate(idPaths.begin(), idPaths.end(), 0u, sumSize);
+        return std::accumulate(idPaths.begin(), idPaths.end(), std::size_t(0), sumSize);
     }