diff --git a/.gitmodules b/.gitmodules
index 5f2f838b78..507e07807c 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -74,6 +74,15 @@
 	fxrequired = AlwaysRequired
 	fxDONOTUSEurl = https://github.com/ESCOMP/HEMCO_CESM.git
 
+[submodule "oslo_aero"]
+	path = src/chemistry/oslo_aero
+#	url = https://github.com/NorESMhub/OSLO_AERO
+#	fxtag = oslo_aero_2_5a08d
+  url = https://github.com/gold2718/OSLO_AERO
+  fxtag = update_to_cam6_4_070
+	fxrequired = AlwaysRequired
+	fxDONOTUSEurl = https://github.com/NorESMhub/OSLO_AERO.git
+
 [submodule "pumas"]
 	path = src/physics/pumas
 	url = https://github.com/ESCOMP/PUMAS
diff --git a/src/chemistry/oslo_aero b/src/chemistry/oslo_aero
new file mode 160000
index 0000000000..5b0449ea30
--- /dev/null
+++ b/src/chemistry/oslo_aero
@@ -0,0 +1 @@
+Subproject commit 5b0449ea304f822ccfcd9a8954dfb6ea82bcf52b