diff --git a/src/Mod/Arch/exportIFC.py b/src/Mod/Arch/exportIFC.py
index 22f0523ef6..95459eef84 100644
--- a/src/Mod/Arch/exportIFC.py
+++ b/src/Mod/Arch/exportIFC.py
@@ -1919,6 +1919,9 @@ def getProfile(ifcfile,p):
         #h = min(abs((semiPerimeter + diff)/2),abs((semiPerimeter - diff)/2))
         b = p.Edges[0].Length
         h = p.Edges[1].Length
+        if h == b:
+            # are these edges unordered? To be on the safe side, check the next one
+            h = p.Edges[2].Length
         profile = ifcbin.createIfcRectangleProfileDef("AREA",'rectangular',pt,b,h)
     elif (len(p.Faces) == 1) and (len(p.Wires) > 1):
         # face with holes