diff --git a/src/ifcblenderexport/Makefile b/src/ifcblenderexport/Makefile
index 548f8c6b5d..a97968aeba 100644
--- a/src/ifcblenderexport/Makefile
+++ b/src/ifcblenderexport/Makefile
@@ -229,22 +229,15 @@ endif
 	rm -rf dist/working
 
 	# Required by IFCClash
+	mkdir dist/working
 ifeq ($(PLATFORM), linux)
-	mkdir dist/working
 	cd dist/working && wget https://files.pythonhosted.org/packages/0c/fa/00d85f893b02289e2942849d97f8818dde8e2111182e825fb3a735677791/python_fcl-0.0.12-cp37-cp37m-manylinux1_x86_64.whl
-	cd dist/working && unzip python_fcl*
-	cp -r dist/working/fcl dist/blenderbim/libs/site/packages/
-	rm -rf dist/working
 endif
-
-	# Required by IFCClash
 ifeq ($(PLATFORM), win)
-	mkdir dist/working
 	cd dist/working && wget https://files.pythonhosted.org/packages/19/e6/6e9f33fb59e8f27c0e1592bd26e644bc92b85c942b072b2d3854105d5887/python_fcl_win32-0.0.12.post3-py3-none-win_amd64.whl
+endif
 	cd dist/working && unzip python_fcl*
 	cp -r dist/working/fcl dist/blenderbim/libs/site/packages/
-	rm -rf dist/working
-endif
 
 	# Required by BIMTester
 	mkdir dist/working
diff --git a/src/ifcblenderexport/blenderbim/bim/prop.py b/src/ifcblenderexport/blenderbim/bim/prop.py
index 695e7a6dfd..82398e7a8c 100644
--- a/src/ifcblenderexport/blenderbim/bim/prop.py
+++ b/src/ifcblenderexport/blenderbim/bim/prop.py
@@ -448,6 +448,7 @@ class BIMProperties(PropertyGroup):
         default="SQUARE_METRE",
         items=[
             ("MILLI/SQUARE_METRE", "Square Millimetre", ""),
+            ("DECI/SQUARE_METRE", "Square Decimetre", ""),
             ("CENTI/SQUARE_METRE", "Square Centimetre", ""),
             ("SQUARE_METRE", "Square Metre", ""),
             ("KILO/SQUARE_METRE", "Square Kilometre", ""),
@@ -462,6 +463,7 @@ class BIMProperties(PropertyGroup):
         default="CUBIC_METRE",
         items=[
             ("MILLI/CUBIC_METRE", "Cubic Millimetre", ""),
+            ("DECI/CUBIC_METRE", "Cubic Decimetre", ""),
             ("CENTI/CUBIC_METRE", "Cubic Centimetre", ""),
             ("CUBIC_METRE", "Cubic Metre", ""),
             ("KILO/CUBIC_METRE", "Cubic Kilometre", ""),