diff --git a/compiler/forget/src/HIR/SSAify.ts b/compiler/forget/src/HIR/SSAify.ts
index a3965d55c0..94828557e0 100644
--- a/compiler/forget/src/HIR/SSAify.ts
+++ b/compiler/forget/src/HIR/SSAify.ts
@@ -174,7 +174,12 @@ export default function buildSSA(func: HIRFunction, env: Environment) {
 
       if (instr.lvalue != null) {
         const oldPlace = instr.lvalue.place;
-        const newPlace: Place = builder.definePlace(oldPlace);
+        let newPlace: Place;
+        if (oldPlace.memberPath !== null) {
+          newPlace = builder.getPlace(oldPlace);
+        } else {
+          newPlace = builder.definePlace(oldPlace);
+        }
         instr.lvalue.place = newPlace;
       }
     }
diff --git a/compiler/forget/src/__tests__/fixtures/hir/ssa-property.expect.md b/compiler/forget/src/__tests__/fixtures/hir/ssa-property.expect.md
index 3626057353..d3cc631513 100644
--- a/compiler/forget/src/__tests__/fixtures/hir/ssa-property.expect.md
+++ b/compiler/forget/src/__tests__/fixtures/hir/ssa-property.expect.md
@@ -17,8 +17,8 @@ function foo() {
 bb0:
   Const mutate x$3 = Array []
   Const mutate y$4 = Object {  }
-  Reassign mutate y$5.x = read x$3
-  Return freeze y$5
+  Reassign mutate y$4.x = read x$3
+  Return freeze y$4
 ```
 
 ## Code
@@ -27,8 +27,8 @@ bb0:
 function foo$0() {
   const x$3 = [];
   const y$4 = {};
-  y$5 = x$3;
-  return y$5;
+  y$4 = x$3;
+  return y$4;
 }
 
 ```