diff --git a/compiler/packages/babel-plugin-react-compiler/src/HIR/Environment.ts b/compiler/packages/babel-plugin-react-compiler/src/HIR/Environment.ts
index e74fb4a8c1..4188e536a4 100644
--- a/compiler/packages/babel-plugin-react-compiler/src/HIR/Environment.ts
+++ b/compiler/packages/babel-plugin-react-compiler/src/HIR/Environment.ts
@@ -480,19 +480,28 @@ export function parseConfigPragma(pragma: string): EnvironmentConfig {
     }
 
     if (
-      key === "enablePreserveExistingManualUseMemoAsHook" &&
-      (val === undefined || val === "true")
+      key === "enablePreserveExistingManualUseMemo" &&
+      (val === undefined || val === "true" || val === "scope")
     ) {
-      maybeConfig["enablePreserveExistingManualUseMemo"] = "hook";
+      maybeConfig[key] = "scope";
+      continue;
+    }
+
+    if (key === "enablePreserveExistingManualUseMemo" && val === "hook") {
+      maybeConfig[key] = "hook";
       continue;
     }
 
     if (
-      key === "enablePreserveExistingManualUseMemoAsScope" &&
-      (val === undefined || val === "true")
+      key === "enablePreserveExistingManualUseMemo" &&
+      !(val === "false" || val === "off")
     ) {
-      maybeConfig["enablePreserveExistingManualUseMemo"] = "scope";
-      continue;
+      CompilerError.throwInvalidConfig({
+        reason: `Invalid setting '${val}' for 'enablePreserveExistingManualUseMemo'. Valid settings are 'hook', 'scope', or 'off'.`,
+        description: null,
+        loc: null,
+        suggestions: null,
+      });
     }
 
     if (typeof defaultConfig[key as keyof EnvironmentConfig] !== "boolean") {
diff --git a/compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/useMemo-preserve-non-idempotent.expect.md b/compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/useMemo-preserve-non-idempotent.expect.md
index 87bba8504d..deb36c578b 100644
--- a/compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/useMemo-preserve-non-idempotent.expect.md
+++ b/compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/useMemo-preserve-non-idempotent.expect.md
@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @enablePreserveExistingManualUseMemoAsScope
+// @enablePreserveExistingManualUseMemo
 import { useMemo } from "react";
 let cur = 99;
 function random(id) {
@@ -28,7 +28,7 @@ export const FIXTURE_ENTRYPOINT = {
 ## Code
 
 ```javascript
-import { c as _c } from "react/compiler-runtime"; // @enablePreserveExistingManualUseMemoAsScope
+import { c as _c } from "react/compiler-runtime"; // @enablePreserveExistingManualUseMemo
 import { useMemo } from "react";
 let cur = 99;
 function random(id) {
diff --git a/compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/useMemo-preserve-non-idempotent.js b/compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/useMemo-preserve-non-idempotent.js
index dfe6e8de63..63a5be8eee 100644
--- a/compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/useMemo-preserve-non-idempotent.js
+++ b/compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/useMemo-preserve-non-idempotent.js
@@ -1,4 +1,4 @@
-// @enablePreserveExistingManualUseMemoAsScope
+// @enablePreserveExistingManualUseMemo
 import { useMemo } from "react";
 let cur = 99;
 function random(id) {
diff --git a/compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/useMemo-simple-preserved.expect.md b/compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/useMemo-simple-preserved.expect.md
index 0a78356a5e..c72e3a140d 100644
--- a/compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/useMemo-simple-preserved.expect.md
+++ b/compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/useMemo-simple-preserved.expect.md
@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @enablePreserveExistingManualUseMemoAsScope
+// @enablePreserveExistingManualUseMemo
 import { useMemo } from "react";
 
 function Component({ a }) {
@@ -21,7 +21,7 @@ export const FIXTURE_ENTRYPOINT = {
 ## Code
 
 ```javascript
-import { c as _c } from "react/compiler-runtime"; // @enablePreserveExistingManualUseMemoAsScope
+import { c as _c } from "react/compiler-runtime"; // @enablePreserveExistingManualUseMemo
 import { useMemo } from "react";
 
 function Component(t0) {
diff --git a/compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/useMemo-simple-preserved.js b/compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/useMemo-simple-preserved.js
index 52a88490f2..a5731f2f09 100644
--- a/compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/useMemo-simple-preserved.js
+++ b/compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/useMemo-simple-preserved.js
@@ -1,4 +1,4 @@
-// @enablePreserveExistingManualUseMemoAsScope
+// @enablePreserveExistingManualUseMemo
 import { useMemo } from "react";
 
 function Component({ a }) {
diff --git a/compiler/packages/snap/src/compiler.ts b/compiler/packages/snap/src/compiler.ts
index 889514bd34..8afbecde8a 100644
--- a/compiler/packages/snap/src/compiler.ts
+++ b/compiler/packages/snap/src/compiler.ts
@@ -141,17 +141,28 @@ function makePluginOptions(
       },
     };
   }
-  if (firstLine.includes("@enablePreserveExistingManualUseMemoAsHook")) {
-    enablePreserveExistingManualUseMemo = "hook";
-  } else if (
-    firstLine.includes("@enablePreserveExistingManualUseMemoAsScope")
+
+  const useMemoMatch = /@enablePreserveExistingManualUseMemo:"([^"]+)"/.exec(
+    firstLine
+  );
+  if (
+    useMemoMatch &&
+    (useMemoMatch[1] === "hook" || useMemoMatch[1] === "scope")
   ) {
-    enablePreserveExistingManualUseMemo = "scope";
-  } else if (firstLine.includes("@enablePreserveExistingManualUseMemo")) {
+    enablePreserveExistingManualUseMemo = useMemoMatch[1];
+  } else if (
+    useMemoMatch &&
+    (useMemoMatch[1] === "false" || useMemoMatch[1] === "off")
+  ) {
+    enablePreserveExistingManualUseMemo = null;
+  } else if (useMemoMatch) {
     throw new Error(
-      "Use either @enablePreserveExistingManualUseMemoAsScope or @enablePreserveExistingManualUseMemoAsHook"
+      `Invalid setting '${useMemoMatch[1]}' for 'enablePreserveExistingManualUseMemo'. Valid settings are 'hook', 'scope', or 'off'.`
     );
+  } else if (firstLine.includes("@enablePreserveExistingManualUseMemo")) {
+    enablePreserveExistingManualUseMemo = "scope";
   }
+
   const hookPatternMatch = /@hookPattern:"([^"]+)"/.exec(firstLine);
   if (
     hookPatternMatch &&