diff --git a/src/common/FBSurfaceSDL2.cxx b/src/common/FBSurfaceSDL2.cxx
index f68b06b4b..4cf940e0b 100644
--- a/src/common/FBSurfaceSDL2.cxx
+++ b/src/common/FBSurfaceSDL2.cxx
@@ -123,7 +123,7 @@ void FBSurfaceSDL2::setInterpolationAndBlending(
 {
   myInterpolate = smoothScale;
   myBlendEnabled = useBlend;
-  myBlendAlpha = blendAlpha * 2.55;
+  myBlendAlpha = uInt8(blendAlpha * 2.55);
 
   // Re-create the texture with the new settings
   free();
diff --git a/src/emucore/FrameBuffer.cxx b/src/emucore/FrameBuffer.cxx
index 7e8b4fd4a..70ebcef18 100644
--- a/src/emucore/FrameBuffer.cxx
+++ b/src/emucore/FrameBuffer.cxx
@@ -388,6 +388,7 @@ void FrameBuffer::showMessage(const string& message, MessagePosition position,
 
   myMsg.w = font().getStringWidth(myMsg.text) + 10;
   myMsg.h = font().getFontHeight() + 8;
+  myMsg.surface->setSrcSize(myMsg.w, myMsg.h);
   myMsg.surface->setDstSize(myMsg.w, myMsg.h);
   myMsg.position = position;
   myMsg.enabled = true;