diff --git a/.gitmodules b/.gitmodules
index fba6ec5..59ce58a 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,6 +1,7 @@
 [submodule "external/umac"]
 	url = https://github.com/jepler/umac
 	path = external/umac
+	branch = soundemu
 [submodule "external/no-OS-FatFS-SD-SPI-RPi-Pico"]
 	path = external/no-OS-FatFS-SD-SPI-RPi-Pico
 	url = https://github.com/evansm7/no-OS-FatFS-SD-SPI-RPi-Pico.git