diff --git a/.gitmodules b/.gitmodules
index d07db8b..1c18ab9 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,4 @@
 [submodule "tomlc99"]
 	path = tomlc99
 	url = https://github.com/cktan/tomlc99.git
+	branch = master
diff --git a/tomlc99 b/tomlc99
index f06bf3a..ddb9cc4 160000
--- a/tomlc99
+++ b/tomlc99
@@ -1 +1 @@
-Subproject commit f06bf3a5ccdf60271a8cb25a066776297af8868a
+Subproject commit ddb9cc4eeb2391603bdd240ff055eb6de166528b