diff --git a/packages/metro/src/JSTransformer/worker/__tests__/constant-folding-plugin-test.js b/packages/metro/src/JSTransformer/worker/__tests__/constant-folding-plugin-test.js
index 17c9d2e7..ca2a273c 100644
--- a/packages/metro/src/JSTransformer/worker/__tests__/constant-folding-plugin-test.js
+++ b/packages/metro/src/JSTransformer/worker/__tests__/constant-folding-plugin-test.js
@@ -259,4 +259,16 @@ describe('constant expressions', () => {
 
     expect(fold('arbitrary.js', code)).toEqual('var x=2;{z();}');
   });
+
+  it('does not mess up -0', () => {
+    const code = `
+      var plusZero = +0;
+      var zero = 0;
+      var minusZero = -0;
+    `;
+
+    expect(fold('arbitrary.js', code)).toEqual(
+      'var plusZero=0;var zero=0;var minusZero=-0;',
+    );
+  });
 });
diff --git a/packages/metro/src/JSTransformer/worker/constant-folding-plugin.js b/packages/metro/src/JSTransformer/worker/constant-folding-plugin.js
index 4c8557fb..7742c6e9 100644
--- a/packages/metro/src/JSTransformer/worker/constant-folding-plugin.js
+++ b/packages/metro/src/JSTransformer/worker/constant-folding-plugin.js
@@ -63,7 +63,9 @@ function constantFoldingPlugin(context: {types: BabelTypes}) {
       const result = path.evaluate();
 
       if (result.confident) {
-        path.replaceWith(t.valueToNode(result.value));
+        if (!Object.is(result.value, -0)) {
+          path.replaceWith(t.valueToNode(result.value));
+        }
       }
     },
   };