diff --git a/.gitmodules b/.gitmodules
index 39e2ab1a7..e2b5f3ec3 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -94,3 +94,6 @@
 [submodule "submodules/bctoolbox"]
 	path = submodules/bctoolbox
 	url = git://git.linphone.org/bctoolbox
+[submodule "submodules/externals/mbedtls"]
+	path = submodules/externals/mbedtls
+	url = git://git.linphone.org/mbedtls.git
diff --git a/submodules/externals/mbedtls b/submodules/externals/mbedtls
new file mode 160000
index 000000000..edb1a4839
--- /dev/null
+++ b/submodules/externals/mbedtls
@@ -0,0 +1 @@
+Subproject commit edb1a483971c836e84e95d7b73ee39bd6b450675