diff --git a/.gitmodules b/.gitmodules
index 392e4c6..bd70a68 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -10,6 +10,7 @@
 	path = libraries/tomcrypt
 	url = https://git.did.science/TeaSpeak/libraries/tomcrypt.git
 [submodule "libraries/tommath"]
+	branch = develop
 	path = libraries/tommath
 	url = https://git.did.science/TeaSpeak/libraries/tommath.git
 [submodule "libraries/CXXTerminal"]