diff --git a/compiler/base/hierarchy_layout.py b/compiler/base/hierarchy_layout.py
index 4d0345a3..f659aed4 100644
--- a/compiler/base/hierarchy_layout.py
+++ b/compiler/base/hierarchy_layout.py
@@ -450,7 +450,7 @@ class layout():
                     path=coordinates,
                     layer_widths=layer_widths)
 
-    def add_zjog(self, layer, start, end, first_direction="H"):
+    def add_zjog(self, layer, start, end, first_direction="H", fixed_offset=None):
         """
         Add a simple jog at the halfway point.
         If layer is a single value, it is a path.
@@ -459,11 +459,17 @@ class layout():
 
         # vertical first
         if first_direction == "V":
-            mid1 = vector(start.x, 0.5 * start.y + 0.5 * end.y)
+            if fixed_offset:
+                mid1 = vector(start.x, fixed_offset)
+            else:
+                mid1 = vector(start.x, 0.5 * start.y + 0.5 * end.y)
             mid2 = vector(end.x, mid1.y)
         # horizontal first
         elif first_direction == "H":
-            mid1 = vector(0.5 * start.x + 0.5 * end.x, start.y)
+            if fixed_offset:
+                mid1 = vector(fixed_offset, start.y)
+            else:
+                mid1 = vector(0.5 * start.x + 0.5 * end.x, start.y)
             mid2 = vector(mid1, end.y)
         else:
             debug.error("Invalid direction for jog -- must be H or V.")