diff --git a/kernel/constids.inc b/kernel/constids.inc
index 59f7246e9..02dc64a12 100644
--- a/kernel/constids.inc
+++ b/kernel/constids.inc
@@ -909,6 +909,7 @@ X(interface_type)
 X(interfaces_replaced_in_module)
 X(invertible_pin)
 X(iopad_external_pin)
+X(is_clock_gated)
 X(is_inferred)
 X(is_interface)
 X(it)
diff --git a/passes/techmap/clockgate.cc b/passes/techmap/clockgate.cc
index 01ab2e771..6a5f95d5b 100644
--- a/passes/techmap/clockgate.cc
+++ b/passes/techmap/clockgate.cc
@@ -428,7 +428,8 @@ struct ClockgatePass : public Pass {
 				ff.sig_clk = (*it).second.new_net;
 
 				// Rebuild the flop
-				(void)ff.emit();
+				Cell *new_ff = ff.emit();
+				new_ff->set_bool_attribute(ID::is_clock_gated);
 
 				gated_flop_count++;
 			}