diff --git a/klippy/extras/gcode_macro.py b/klippy/extras/gcode_macro.py
index f244b344..3aa5087b 100644
--- a/klippy/extras/gcode_macro.py
+++ b/klippy/extras/gcode_macro.py
@@ -178,8 +178,8 @@ class GCodeMacro:
             literal = ast.literal_eval(value)
             json.dumps(literal, separators=(',', ':'))
         except (SyntaxError, TypeError, ValueError) as e:
-            raise gcmd.error("Unable to parse '%s' as a literal: %s" %
-                             (value, e))
+            raise gcmd.error("Unable to parse '%s' as a literal: %s in '%s'" %
+                             (value, e, gcmd.get_commandline()))
         v = dict(self.variables)
         v[variable] = literal
         self.variables = v