diff --git a/graphics/bonzomatic/files/patch-src_main.cpp b/graphics/bonzomatic/files/patch-src_main.cpp
new file mode 100644
index 000000000000..92fc12ac2280
--- /dev/null
+++ b/graphics/bonzomatic/files/patch-src_main.cpp
@@ -0,0 +1,11 @@
+--- src/main.cpp.orig	2022-07-08 20:07:06 UTC
++++ src/main.cpp
+@@ -503,7 +503,7 @@ int main( int argc, const char * argv[] )
+         if ( !consumed && Renderer::keyEventBuffer[ i ].character )
+         {
+           char    utf8[ 5 ] = { 0,0,0,0,0 };
+-          wchar_t utf16[ 2 ] = { Renderer::keyEventBuffer[ i ].character, 0 };
++          wchar_t utf16[ 2 ] = { static_cast<wchar_t>(Renderer::keyEventBuffer[ i ].character), 0 };
+           Scintilla::UTF8FromUTF16( utf16, 1, utf8, 4 * sizeof( char ) );
+           mShaderEditor.AddCharUTF( utf8, (unsigned int) strlen( utf8 ) );
+         }