diff --git a/passes/techmap/aigmap.cc b/passes/techmap/aigmap.cc
index 6b7e0c377..c1ec214fd 100644
--- a/passes/techmap/aigmap.cc
+++ b/passes/techmap/aigmap.cc
@@ -92,7 +92,6 @@ struct AigmapPass : public Pass {
 				}
 
 				vector<SigBit> sigs;
-				dict<pair<int, int>, SigBit> and_cache;
 
 				for (int node_idx = 0; node_idx < GetSize(aig.nodes); node_idx++)
 				{
@@ -115,15 +114,10 @@ struct AigmapPass : public Pass {
 
 							goto skip_inverter;
 						} else {
-							pair<int, int> key(node.left_parent, node.right_parent);
-							if (and_cache.count(key))
-								bit = and_cache.at(key);
-							else {
-								bit = module->addWire(NEW_ID);
-								auto gate = module->addAndGate(NEW_ID, A, B, bit);
-								if (select_mode)
-									new_sel.insert(gate->name);
-							}
+							bit = module->addWire(NEW_ID);
+							auto gate = module->addAndGate(NEW_ID, A, B, bit);
+							if (select_mode)
+								new_sel.insert(gate->name);
 						}
 					}