diff --git a/armi/reactor/components/__init__.py b/armi/reactor/components/__init__.py
index 1dc5f2399..931adec2b 100644
--- a/armi/reactor/components/__init__.py
+++ b/armi/reactor/components/__init__.py
@@ -341,22 +341,16 @@ def computeVolume(self):
         """
         return self._deriveVolumeAndArea()
 
-    @staticmethod
-    def getMaxVolume(block):
+    def getMaxVolume(self):
         """
         The maximum volume of the parent Block.
 
-        Parameters
-        ----------
-        block : Block
-            Block of interest.
-
         Returns
         -------
         vol : float
             volume in cm^3.
         """
-        return block.getMaxArea() * block.getHeight()
+        return self.parent.getMaxArea() * self.parent.getHeight()
 
     def _deriveVolumeAndArea(self):
         """
@@ -400,7 +394,7 @@ def _deriveVolumeAndArea(self):
             except:  # noqa: bare-except
                 siblingArea = None
 
-        remainingVolume = DerivedShape.getMaxVolume(self.parent) - siblingVolume
+        remainingVolume = self.getMaxVolume() - siblingVolume
         if siblingArea:
             remainingArea = self.parent.getMaxArea() - siblingArea
 
@@ -410,7 +404,7 @@ def _deriveVolumeAndArea(self):
                 f"The component areas in {self.parent} exceed the maximum "
                 "allowable volume based on the geometry. Check that the "
                 "geometry is defined correctly.\n"
-                f"Maximum allowable volume: {DerivedShape.getMaxVolume(self.parent)} "
+                f"Maximum allowable volume: {self.getMaxVolume()} "
                 f"cm^3\nVolume of all non-derived shape components: {siblingVolume} cm^3\n"
             )
             runLog.error(msg)