diff --git a/.gitmodules b/.gitmodules
index 1e65ce914..363c72e8a 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -82,3 +82,6 @@
 	path = submodules/externals/vo-amrwbenc
 	url = git://git.linphone.org/vo-amrwbenc.git
 	ignore = dirty
+[submodule "submodules/externals/libmatroska-c"]
+	path = submodules/externals/libmatroska-c
+	url = https://github.com/Matroska-Org/foundation-source.git
diff --git a/submodules/externals/libmatroska-c b/submodules/externals/libmatroska-c
new file mode 160000
index 000000000..7875337f2
--- /dev/null
+++ b/submodules/externals/libmatroska-c
@@ -0,0 +1 @@
+Subproject commit 7875337f25d2147557d8c60820b377aa60646b52