diff --git a/.gitmodules b/.gitmodules
index a0adeea..1443f2b 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,9 @@
 [submodule "third_party/qscintilla"]
 	path = third_party/qscintilla
 	url = https://github.com/brCreate/QScintilla.git
+[submodule "third_party/raw_pdb"]
+	path = third_party/raw_pdb
+	url = https://github.com/MolecularMatters/raw_pdb.git
+[submodule "third_party/fadec"]
+	path = third_party/fadec
+	url = https://github.com/aengelke/fadec.git
diff --git a/third_party/fadec b/third_party/fadec
new file mode 160000
index 0000000..682f9f1
--- /dev/null
+++ b/third_party/fadec
@@ -0,0 +1 @@
+Subproject commit 682f9f192950a16c9af795323578b506dbd8450a
diff --git a/third_party/raw_pdb b/third_party/raw_pdb
new file mode 160000
index 0000000..d7ef853
--- /dev/null
+++ b/third_party/raw_pdb
@@ -0,0 +1 @@
+Subproject commit d7ef85355411758929db902e63bacfb3f9e9f3be