diff --git a/ihp-sg13g2/libs.tech/klayout/python/sg13g2_pycell_lib/__init__.py b/ihp-sg13g2/libs.tech/klayout/python/sg13g2_pycell_lib/__init__.py
index 15360072..5cd69d93 100644
--- a/ihp-sg13g2/libs.tech/klayout/python/sg13g2_pycell_lib/__init__.py
+++ b/ihp-sg13g2/libs.tech/klayout/python/sg13g2_pycell_lib/__init__.py
@@ -148,12 +148,10 @@ def __init__(self):
 
         tech = Tech.get('SG13_dev')
 
-        processNames = getProcessNames()
-
         if os.getenv('IHP_PYCELL_LIB_PRINT_PROCESS_TREE') is not None:
             processChain = ''
             isFirst = True
-            for processName in reversed(processNames):
+            for processName in reversed(getProcessNames()):
                 if not isFirst:
                     processChain += ' <- '
                 processChain += "'" + processName + "'"