diff --git a/doc/API.rst b/doc/API.rst
index 7b3eac54..b1d4a233 100644
--- a/doc/API.rst
+++ b/doc/API.rst
@@ -9,6 +9,7 @@ This package consists of the following modules:
    :maxdepth: 1
 
    DVConstraints
+   mphys_dvgeo
    DVGeometry
    DVGeometryMulti
    DVGeometryESP
diff --git a/doc/conf.py b/doc/conf.py
index fa25f384..a586c61b 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -30,7 +30,18 @@
 )
 
 # mock import for autodoc
-autodoc_mock_imports = ["numpy", "mpi4py", "scipy", "pyspline", "baseclasses", "pysurf", "prefoil", "pyOCSM", "openvsp"]
+autodoc_mock_imports = [
+    "numpy",
+    "mpi4py",
+    "scipy",
+    "pyspline",
+    "baseclasses",
+    "pysurf",
+    "prefoil",
+    "pyOCSM",
+    "openvsp",
+    "openmdao",
+]
 
 # This sets the bibtex bibliography file(s) to reference in the documentation
 bibtex_bibfiles = ["ref.bib"]
diff --git a/doc/mphys_dvgeo.rst b/doc/mphys_dvgeo.rst
new file mode 100644
index 00000000..23f8b6f1
--- /dev/null
+++ b/doc/mphys_dvgeo.rst
@@ -0,0 +1,6 @@
+.. _OM_DVGEOCOMP:
+
+MPhys DVGeo Component
+---------------------
+.. autoclass:: pygeo.mphys.mphys_dvgeo.OM_DVGEOCOMP
+    :members:
diff --git a/pygeo/mphys/mphys_dvgeo.py b/pygeo/mphys/mphys_dvgeo.py
index c0f69bcb..cbd53f93 100644
--- a/pygeo/mphys/mphys_dvgeo.py
+++ b/pygeo/mphys/mphys_dvgeo.py
@@ -136,21 +136,49 @@ def nom_add_point_dict(self, point_dict):
             self.nom_addPointSet(v, k)
 
     def nom_addGlobalDV(self, dvName, value, func, childIdx=None, isComposite=False):
+        """Add a global design variable to the DVGeo object. This is a wrapper for the DVGeo.addGlobalDV method.
+
+        Parameters
+        ----------
+        dvName : str
+            See :meth:`addGlobalDV <.DVGeometry.addGlobalDV>`
+
+        value : float, or iterable list of floats
+            See :meth:`addGlobalDV <.DVGeometry.addGlobalDV>`
+
+        func : python function
+            See :meth:`addGlobalDV <.DVGeometry.addGlobalDV>`
+
+        childIdx : int, optional
+            The zero-based index of the child FFD, if this DV is for a child FFD.
+            The index is defined by the order in which you add the child FFD to the parent.
+            For example, the first child FFD has an index of 0, the second an index of 1, and so on.
+
+        isComposite : bool, optional
+            Whether this DV is to be included in the composite DVs, by default False
+
+        Raises
+        ------
+        RuntimeError
+            Raised if the underlying DVGeo object is not an FFD
+        """
         # global DVs are only added to FFD-based DVGeo objects
         if self.geo_type != "ffd":
             raise RuntimeError(f"Only FFD-based DVGeo objects can use global DVs, not type:{self.geo_type}")
 
-        # define the input
-        # When composite DVs are used, input is not required for the default DVs. Now the composite DVs are
-        # the actual DVs. So OpenMDAO don't need the default DVs as inputs.
-        if not isComposite:
-            self.add_input(dvName, distributed=False, shape=len(value))
-
         # call the dvgeo object and add this dv
         if childIdx is None:
             self.DVGeo.addGlobalDV(dvName, value, func)
+            shape = self.DVGeo.DV_listGlobal[dvName].nVal
         else:
             self.DVGeo.children[childIdx].addGlobalDV(dvName, value, func)
+            shape = self.DVGeo.children[childIdx].DV_listGlobal[dvName].nVal
+
+        # define the input
+        # When composite DVs are used, input is not required for the default DVs. Now the composite DVs are
+        # the actual DVs. So OpenMDAO don't need the default DVs as inputs.
+        if not isComposite:
+            self.add_input(dvName, val=value, distributed=False, shape=shape)
 
     def nom_addLocalDV(self, dvName, axis="y", pointSelect=None, childIdx=None, isComposite=False):
         # local DVs are only added to FFD-based DVGeo objects