4 files changed, 4 insertions, 4 deletions
diff --git a/src/gui/viewport.cpp b/src/gui/viewport.cpp
index e0d5d217f..341477c0f 100644
--- a/src/gui/viewport.cpp
+++ b/src/gui/viewport.cpp
@@ -582,7 +582,7 @@ void Viewport::mousePressed(MouseEvent &event)
     }
 }
 
-void Viewport::getMouseTile(int &destX, int &destY)
+void Viewport::getMouseTile(int &destX, int &destY) const
 {
     getMouseTile(mMouseX, mMouseY, destX, destY);
 }
diff --git a/src/gui/viewport.h b/src/gui/viewport.h
index 1a959a858..a03137761 100644
--- a/src/gui/viewport.h
+++ b/src/gui/viewport.h
@@ -169,7 +169,7 @@ class Viewport final : public WindowContainer,
 
         void returnCamera();
 
-        void getMouseTile(int &destX, int &destY);
+        void getMouseTile(int &destX, int &destY) const;
 
         int mMouseX;                /**< Current mouse position in pixels. */
         int mMouseY;                /**< Current mouse position in pixels. */
diff --git a/src/gui/widgets/tabs/setup_colors.cpp b/src/gui/widgets/tabs/setup_colors.cpp
index 00ab33bcc..8ad0958e1 100644
--- a/src/gui/widgets/tabs/setup_colors.cpp
+++ b/src/gui/widgets/tabs/setup_colors.cpp
@@ -448,7 +448,7 @@ void Setup_Colors::updateGradType()
     mBlueSlider->setEnabled(enable);
 }
 
-void Setup_Colors::updateColor()
+void Setup_Colors::updateColor() const
 {
     if (mSelected == -1 || !userPalette)
         return;
diff --git a/src/gui/widgets/tabs/setup_colors.h b/src/gui/widgets/tabs/setup_colors.h
index 8276b111b..da4fb6c90 100644
--- a/src/gui/widgets/tabs/setup_colors.h
+++ b/src/gui/widgets/tabs/setup_colors.h
@@ -84,7 +84,7 @@ class Setup_Colors final : public SetupTab,
 
         static void setEntry(Slider *const s, TextField *const t,
                              const int value);
-        void updateColor();
+        void updateColor() const;
         void updateGradType();
 };