diff --git a/platforms/sdl/CMakeLists.txt b/platforms/sdl/CMakeLists.txt
index 4d34dcf..56f076f 100644
--- a/platforms/sdl/CMakeLists.txt
+++ b/platforms/sdl/CMakeLists.txt
@@ -13,6 +13,7 @@ if(EMSCRIPTEN)
         add_link_options(${ARGV})
     endfunction()
     set(CMAKE_EXECUTABLE_SUFFIX ".js")
+    add_link_options("$<$<CONFIG:DEBUG>:-gsource-map>")
 endif()
 
 # Clang
diff --git a/source/client/app/Minecraft.cpp b/source/client/app/Minecraft.cpp
index 256a124..a84263f 100644
--- a/source/client/app/Minecraft.cpp
+++ b/source/client/app/Minecraft.cpp
@@ -950,7 +950,7 @@ void Minecraft::sizeUpdate(int newWidth, int newHeight)
 		m_pScreen->setSize(int(Minecraft::width * Gui::InvGuiScale), int(Minecraft::height * Gui::InvGuiScale));
 
 	if (m_pInputHolder)
-		m_pInputHolder->setScreenSize(newWidth, newHeight);
+		m_pInputHolder->setScreenSize(newWidth * guiScaleMultiplier, newHeight * guiScaleMultiplier);
 }
 
 float Minecraft::getBestScaleForThisScreenSize(int width, int height)