diff --git a/src/plugins/qmakeprojectmanager/qmakebuildconfiguration.cpp b/src/plugins/qmakeprojectmanager/qmakebuildconfiguration.cpp
index 86928ce9c94..9016dcf6e6a 100644
--- a/src/plugins/qmakeprojectmanager/qmakebuildconfiguration.cpp
+++ b/src/plugins/qmakeprojectmanager/qmakebuildconfiguration.cpp
@@ -756,10 +756,7 @@ BuildConfiguration::BuildType QmakeBuildConfiguration::buildType() const
         return Release;
 }
 
-QmakeBuildConfiguration::LastKitState::LastKitState()
-{
-
-}
+QmakeBuildConfiguration::LastKitState::LastKitState() { }
 
 QmakeBuildConfiguration::LastKitState::LastKitState(Kit *k)
     : m_qtVersion(QtKitInformation::qtVersionId(k)),
diff --git a/src/plugins/qmakeprojectmanager/qmakebuildconfiguration.h b/src/plugins/qmakeprojectmanager/qmakebuildconfiguration.h
index 120a375806d..5a956389e7f 100644
--- a/src/plugins/qmakeprojectmanager/qmakebuildconfiguration.h
+++ b/src/plugins/qmakeprojectmanager/qmakebuildconfiguration.h
@@ -129,7 +129,7 @@ private:
         bool operator ==(const LastKitState &other) const;
         bool operator !=(const LastKitState &other) const;
     private:
-        int m_qtVersion;
+        int m_qtVersion = -1;
         QByteArray m_toolchain;
         QString m_sysroot;
         QString m_mkspec;