diff --git a/src/octoprint/util/comm.py b/src/octoprint/util/comm.py
index c8760e7d..1c0f49d9 100644
--- a/src/octoprint/util/comm.py
+++ b/src/octoprint/util/comm.py
@@ -1206,6 +1206,11 @@ class MachineCom(object):
 
 		return None
 
+	def _gcode_M112(self, cmd): # It's an emergency what todo? Canceling the print should be the minimum
+		self.cancelPrint()
+		return cmd
+
+
 ### MachineCom callback ################################################################################################
 
 class MachineComPrintCallback(object):