diff --git a/src/plugins/clangstaticanalyzer/clangstaticanalyzerruncontrol.cpp b/src/plugins/clangstaticanalyzer/clangstaticanalyzerruncontrol.cpp
index e05b5c68813..54863f04f7a 100644
--- a/src/plugins/clangstaticanalyzer/clangstaticanalyzerruncontrol.cpp
+++ b/src/plugins/clangstaticanalyzer/clangstaticanalyzerruncontrol.cpp
@@ -189,7 +189,7 @@ public:
         optionsBuilder.addDefines(projectPart.projectDefines);
         optionsBuilder.undefineClangVersionMacrosForMsvc();
         optionsBuilder.undefineCppLanguageFeatureMacrosForMsvc2015();
-        optionsBuilder.addHeaderPathOptions();
+        optionsBuilder.addHeaderPathOptions(true);
         optionsBuilder.addMsvcCompatibilityVersion();
 
         if (type != ProjectExplorer::Constants::MSVC_TOOLCHAIN_TYPEID)
diff --git a/src/plugins/clangstaticanalyzer/clangstaticanalyzerrunner.cpp b/src/plugins/clangstaticanalyzer/clangstaticanalyzerrunner.cpp
index 725712b8da2..dc6f53fb5d8 100644
--- a/src/plugins/clangstaticanalyzer/clangstaticanalyzerrunner.cpp
+++ b/src/plugins/clangstaticanalyzer/clangstaticanalyzerrunner.cpp
@@ -63,7 +63,7 @@ static QStringList constructCommandLineArguments(const QString &filePath,
     arguments
         << QLatin1String("--analyze")
         << QLatin1String("-o")
-        << logFile
+        << QDir::toNativeSeparators(logFile)
         ;
     arguments += options;
     arguments << QDir::toNativeSeparators(filePath);
@@ -80,7 +80,7 @@ ClangStaticAnalyzerRunner::ClangStaticAnalyzerRunner(const QString &clangExecuta
                                                      const Utils::Environment &environment,
                                                      QObject *parent)
     : QObject(parent)
-    , m_clangExecutable(clangExecutable)
+    , m_clangExecutable(QDir::toNativeSeparators(clangExecutable))
     , m_clangLogFileDir(clangLogFileDir)
 {
     QTC_CHECK(!m_clangExecutable.isEmpty());