diff --git a/src/insets/Inset.h b/src/insets/Inset.h
index d4a15940a3..5438cbe2c5 100644
--- a/src/insets/Inset.h
+++ b/src/insets/Inset.h
@@ -336,7 +336,7 @@ public:
 	// true for InsetTabular & InsetText
 	virtual bool isActive() const { return nargs() > 0; }
 	/// can we click at the specified position ?
-	virtual bool clickable(int x, int y) const { return false; }
+	virtual bool clickable(int, int) const { return false; }
 
 	/// does this contain text that can be change track marked in DVI?
 	virtual bool canTrackChanges() const { return false; }
diff --git a/src/insets/InsetCommand.h b/src/insets/InsetCommand.h
index 8e6ab7afae..259b055c8e 100644
--- a/src/insets/InsetCommand.h
+++ b/src/insets/InsetCommand.h
@@ -99,7 +99,7 @@ private:
 	///
 	InsetCode lyxCode() const { return NO_CODE; }
 	///
-	bool clickable(int x, int y) const { return hasSettings(); }
+	bool clickable(int, int) const { return hasSettings(); }
 	///
 	RenderButton & button() const { return button_; }
 	///
diff --git a/src/insets/InsetExternal.h b/src/insets/InsetExternal.h
index 26890c217b..19baa141c4 100644
--- a/src/insets/InsetExternal.h
+++ b/src/insets/InsetExternal.h
@@ -116,7 +116,7 @@ public:
 	///
 	bool setMouseHover(BufferView const * bv, bool mouse_hover);
 	///
-	bool clickable(int x, int y) const { return true; }
+	bool clickable(int, int) const { return true; }
 private:
 	///
 	InsetExternal(InsetExternal const &);
diff --git a/src/insets/InsetGraphics.h b/src/insets/InsetGraphics.h
index ce02d14eb9..d7bb31525e 100644
--- a/src/insets/InsetGraphics.h
+++ b/src/insets/InsetGraphics.h
@@ -52,7 +52,7 @@ public:
 
 	InsetGraphicsParams getParams() const { return params_;}
 	///
-	bool clickable(int x, int y) const { return true; }
+	bool clickable(int, int) const { return true; }
 
 private:
 	///
diff --git a/src/insets/InsetVSpace.h b/src/insets/InsetVSpace.h
index a4d6a9d378..4eb279dad2 100644
--- a/src/insets/InsetVSpace.h
+++ b/src/insets/InsetVSpace.h
@@ -38,7 +38,7 @@ public:
 	///
 	static std::string params2string(VSpace const &);
 	///
-	bool clickable(int x, int y) const { return true; }
+	bool clickable(int, int) const { return true; }
 private:
 	///
 	void metrics(MetricsInfo & mi, Dimension & dim) const;