diff --git a/LCS/PyCommon/ring_coordinates.py b/LCS/PyCommon/ring_coordinates.py
index 4c4f4ac18af7d77cbc0ca1694f48a02e4e1bb6e9..c91473a1b7ba54839278a72b5e629763913b15f9 100755
--- a/LCS/PyCommon/ring_coordinates.py
+++ b/LCS/PyCommon/ring_coordinates.py
@@ -164,7 +164,7 @@ def project(offset, center, position_angle):
                   y,
                   sin(angle2) * x + cos(angle2) * z)
 
-    # Rotate around z-angle by angle1
+    # Rotate around z-axis by angle1
     x2, y2, z2 = (cos(angle1) * x1 - sin(angle1) * y1,
                   sin(angle1) * x1 + cos(angle1) * y1,
                   z1)