diff --git a/3rdparty/bgfx/src/config.h b/3rdparty/bgfx/src/config.h
index f9e4ddd2408..d16e1b97dc7 100644
--- a/3rdparty/bgfx/src/config.h
+++ b/3rdparty/bgfx/src/config.h
@@ -266,7 +266,7 @@
 #endif // BGFX_CONFIG_MAX_TEXTURE_SAMPLERS
 
 #ifndef BGFX_CONFIG_MAX_FRAME_BUFFERS
-#	define BGFX_CONFIG_MAX_FRAME_BUFFERS 128
+#	define BGFX_CONFIG_MAX_FRAME_BUFFERS 64
 #endif // BGFX_CONFIG_MAX_FRAME_BUFFERS
 
 #ifndef BGFX_CONFIG_MAX_FRAME_BUFFER_ATTACHMENTS
diff --git a/scripts/src/3rdparty.lua b/scripts/src/3rdparty.lua
index 9925c36658d..ecd83a5ae99 100644
--- a/scripts/src/3rdparty.lua
+++ b/scripts/src/3rdparty.lua
@@ -761,6 +761,7 @@ end
 		"__STDC_LIMIT_MACROS",
 		"__STDC_FORMAT_MACROS",
 		"__STDC_CONSTANT_MACROS",
+		"BGFX_CONFIG_MAX_FRAME_BUFFERS=128",
 	}
 	files {
 		MAME_DIR .. "3rdparty/bgfx/src/bgfx.cpp",