diff --git a/tests/filecheck/transforms/apply-eqsat-pdl/apply_eqsat_pdl_swap_inputs.mlir b/tests/filecheck/transforms/apply-eqsat-pdl/apply_eqsat_pdl_swap_inputs.mlir
index 12b4365af1..b09211c3a6 100644
--- a/tests/filecheck/transforms/apply-eqsat-pdl/apply_eqsat_pdl_swap_inputs.mlir
+++ b/tests/filecheck/transforms/apply-eqsat-pdl/apply_eqsat_pdl_swap_inputs.mlir
@@ -5,9 +5,9 @@
 // CHECK-NEXT:      %c4_eq = eqsat.eclass %c4 : i32
 // CHECK-NEXT:      %c2 = arith.constant 2 : i32
 // CHECK-NEXT:      %c2_eq = eqsat.eclass %c2 : i32
-// CHECK-NEXT:      %0 = arith.addi %c2_eq, %c4_eq : i32
-// CHECK-NEXT:      %sum = arith.addi %c4_eq, %c2_eq : i32
-// CHECK-NEXT:      %sum_eq = eqsat.eclass %sum, %0 : i32
+// CHECK-NEXT:      %sum = arith.addi %c2_eq, %c4_eq : i32
+// CHECK-NEXT:      %sum_1 = arith.addi %c4_eq, %c2_eq : i32
+// CHECK-NEXT:      %sum_eq = eqsat.eclass %sum_1, %sum : i32
 // CHECK-NEXT:      func.return %sum_eq : i32
 // CHECK-NEXT:    }
 
diff --git a/xdsl/interpreters/eqsat_pdl.py b/xdsl/interpreters/eqsat_pdl.py
index 5fc1dbbbb3..564b750be7 100644
--- a/xdsl/interpreters/eqsat_pdl.py
+++ b/xdsl/interpreters/eqsat_pdl.py
@@ -226,6 +226,7 @@ def run_replace(
             # Add new op to eclass
             results = new_op.results
             assert len(results) == 1
+            results[0].name_hint = old.results[0].name_hint
             eclass_op = self.value_to_eclass[old.results[0]]
             eclass_op.operands = eclass_op.arguments + results
         elif op.repl_values: