diff --git a/klippy/extras/gcode_macro.py b/klippy/extras/gcode_macro.py
index a29e1248..0ad695b6 100644
--- a/klippy/extras/gcode_macro.py
+++ b/klippy/extras/gcode_macro.py
@@ -28,6 +28,12 @@ class GetStatusWrapper:
             self.eventtime = self.printer.get_reactor().monotonic()
         self.cache[sval] = res = dict(po.get_status(self.eventtime))
         return res
+    def __contains__(self, val):
+        try:
+            self.__getitem__(val)
+        except KeyError as e:
+            return False
+        return True
 
 # Wrapper around a Jinja2 template
 class TemplateWrapper:
diff --git a/test/klippy/macros.cfg b/test/klippy/macros.cfg
index d766c9d6..4886425f 100644
--- a/test/klippy/macros.cfg
+++ b/test/klippy/macros.cfg
@@ -106,6 +106,12 @@ gcode:
     M112
   {% endif %}
 
+[gcode_macro TEST_in]
+gcode:
+  {% if "abc" in printer or "gcode" not in printer %}
+    M112
+  {% endif %}
+
 # Main test start point
 [gcode_macro TESTIT]
 gcode:
@@ -113,3 +119,4 @@ gcode:
   TEST_expression
   TEST_variable
   TEST_param T=123
+  TEST_in