diff --git a/release/scripts/mgear/shifter/guide.py b/release/scripts/mgear/shifter/guide.py
index 38c01503..2d9628f9 100644
--- a/release/scripts/mgear/shifter/guide.py
+++ b/release/scripts/mgear/shifter/guide.py
@@ -1477,7 +1477,7 @@ def runStep(cls, stepPath, customStepDic):
                     )
                 else:
                     runPath = stepPath
-
+                runPath = os.path.expandvars(runPath)
                 customStep = imp.load_source(fileName, runPath)
                 if hasattr(customStep, "CustomShifterStep"):
                     argspec = inspect.getfullargspec(