diff --git a/src/bun.js/bindings/ZigGlobalObject.cpp b/src/bun.js/bindings/ZigGlobalObject.cpp
index 138267cd62..25a47c1379 100644
--- a/src/bun.js/bindings/ZigGlobalObject.cpp
+++ b/src/bun.js/bindings/ZigGlobalObject.cpp
@@ -1496,7 +1496,7 @@ JSC_DEFINE_HOST_FUNCTION(functionPerformanceNow, (JSGlobalObject * globalObject,
     auto* global = reinterpret_cast<GlobalObject*>(globalObject);
     // nanoseconds to seconds
     uint64_t time = Bun__readOriginTimer(global->bunVM());
-    double result = time / 1000000000.0;
+    double result = time / 1000000000000000.0;
     return JSValue::encode(jsNumber(time));
 }