diff --git a/src/plugins/qmakeprojectmanager/profilehighlighter.cpp b/src/plugins/qmakeprojectmanager/profilehighlighter.cpp
index 85752474d33..4b4236fcb2f 100644
--- a/src/plugins/qmakeprojectmanager/profilehighlighter.cpp
+++ b/src/plugins/qmakeprojectmanager/profilehighlighter.cpp
@@ -52,7 +52,7 @@ static TextStyle styleForFormat(int format)
     return C_TEXT;
 }
 
-ProFileHighlighter::ProFileHighlighter(const Keywords &keywords)
+ProFileHighlighter::ProFileHighlighter()
     : m_keywords(qmakeKeywords())
 {
     setTextFormatCategories(NumProfileFormats, styleForFormat);
diff --git a/src/plugins/qmakeprojectmanager/profilehighlighter.h b/src/plugins/qmakeprojectmanager/profilehighlighter.h
index c19979e8c3e..9d85861af85 100644
--- a/src/plugins/qmakeprojectmanager/profilehighlighter.h
+++ b/src/plugins/qmakeprojectmanager/profilehighlighter.h
@@ -42,7 +42,7 @@ public:
         NumProfileFormats
     };
 
-    explicit ProFileHighlighter();
+    ProFileHighlighter();
     void highlightBlock(const QString &text);
 
 private:
diff --git a/src/plugins/qmakeprojectmanager/profilehoverhandler.h b/src/plugins/qmakeprojectmanager/profilehoverhandler.h
index 6ab843be6d5..381329a93c3 100644
--- a/src/plugins/qmakeprojectmanager/profilehoverhandler.h
+++ b/src/plugins/qmakeprojectmanager/profilehoverhandler.h
@@ -38,7 +38,7 @@ namespace Internal {
 class ProFileHoverHandler : public TextEditor::BaseHoverHandler
 {
 public:
-    explicit ProFileHoverHandler();
+    ProFileHoverHandler();
 
 private:
     void identifyMatch(TextEditor::TextEditorWidget *editorWidget, int pos) override;