4 files changed, 6 insertions, 6 deletions
diff --git a/src/gui/models/colormodel.cpp b/src/gui/models/colormodel.cpp
index 7ba88e9a8..88dee3c93 100644
--- a/src/gui/models/colormodel.cpp
+++ b/src/gui/models/colormodel.cpp
@@ -45,7 +45,7 @@ std::string ColorModel::getElementAt(int i)
 {
     if (i >= getNumberOfElements() || i < 0)
         return "???";
-    return mNames[i];
+    return mNames[static_cast<size_t>(i)];
 }
 
 const ColorPair *ColorModel::getColorAt(const int i) const
@@ -53,7 +53,7 @@ const ColorPair *ColorModel::getColorAt(const int i) const
     if (i >= static_cast<int>(mColors.size()) || i < 0)
         return &mColors[0];
 
-    return &mColors[i];
+    return &mColors[static_cast<size_t>(i)];
 }
 
 void ColorModel::add(const std::string &name, const Color *const color1,
diff --git a/src/gui/models/extendednamesmodel.cpp b/src/gui/models/extendednamesmodel.cpp
index d9b522d2d..ac65c8b21 100644
--- a/src/gui/models/extendednamesmodel.cpp
+++ b/src/gui/models/extendednamesmodel.cpp
@@ -42,7 +42,7 @@ std::string ExtendedNamesModel::getElementAt(int i)
 {
     if (i >= getNumberOfElements() || i < 0)
         return "???";
-    return mNames[i];
+    return mNames[static_cast<size_t>(i)];
 }
 
 const Image *ExtendedNamesModel::getImageAt(int i)
@@ -50,7 +50,7 @@ const Image *ExtendedNamesModel::getImageAt(int i)
     if (i >= static_cast<int>(mImages.size()) || i < 0)
         return nullptr;
 
-    return mImages[i];
+    return mImages[static_cast<size_t>(i)];
 }
 
 void ExtendedNamesModel::clear()
diff --git a/src/gui/models/modelistmodel.h b/src/gui/models/modelistmodel.h
index 752bd7ea4..e74dcb69f 100644
--- a/src/gui/models/modelistmodel.h
+++ b/src/gui/models/modelistmodel.h
@@ -49,7 +49,7 @@ class ModeListModel final : public ListModel
          * Returns element from container.
          */
         std::string getElementAt(int i) override final
-        { return mVideoModes[i]; }
+        { return mVideoModes[static_cast<size_t>(i)]; }
 
         /**
          * Returns the index corresponding to the given video mode.
diff --git a/src/gui/models/namesmodel.cpp b/src/gui/models/namesmodel.cpp
index 468c9989b..a66cea6b2 100644
--- a/src/gui/models/namesmodel.cpp
+++ b/src/gui/models/namesmodel.cpp
@@ -42,7 +42,7 @@ std::string NamesModel::getElementAt(int i)
 {
     if (i >= getNumberOfElements() || i < 0)
         return "???";
-    return mNames[i];
+    return mNames[static_cast<size_t>(i)];
 }
 
 void NamesModel::fillFromArray(const char *const *const arr, std::size_t sz)