diff --git a/expressions/src/data/number.test.ts b/expressions/src/data/number.test.ts
new file mode 100644
index 0000000..c0e5453
--- /dev/null
+++ b/expressions/src/data/number.test.ts
@@ -0,0 +1,13 @@
+import {NumberData} from "./number";
+
+describe("number", () => {
+  it("coerces to string", () => {
+    expect(new NumberData(-0).coerceString()).toEqual("0");
+    expect(new NumberData(0).coerceString()).toEqual("0");
+    expect(new NumberData(1).coerceString()).toEqual("1");
+    expect(new NumberData(1.2).coerceString()).toEqual("1.2");
+
+    // Round to 15 digits precision
+    expect(new NumberData(1.2345678901234567).coerceString()).toEqual("1.234567890123457");
+  });
+});
diff --git a/expressions/src/data/number.ts b/expressions/src/data/number.ts
index 9a3dec4..095a1c1 100644
--- a/expressions/src/data/number.ts
+++ b/expressions/src/data/number.ts
@@ -8,7 +8,7 @@ export class NumberData implements ExpressionDataInterface {
   public primitive = true;
 
   coerceString(): string {
-    if (Object.is(this.value, -0)) {
+    if (this.value === 0) {
       return "0";
     }