diff --git a/Userland/Libraries/LibJS/Runtime/CommonPropertyNames.h b/Userland/Libraries/LibJS/Runtime/CommonPropertyNames.h
index bc037c5ffe..2f97beebb8 100644
--- a/Userland/Libraries/LibJS/Runtime/CommonPropertyNames.h
+++ b/Userland/Libraries/LibJS/Runtime/CommonPropertyNames.h
@@ -24,7 +24,9 @@ namespace JS {
     P(LOG10E)                                \
     P(LOG2E)                                 \
     P(MAX_SAFE_INTEGER)                      \
+    P(MAX_VALUE)                             \
     P(MIN_SAFE_INTEGER)                      \
+    P(MIN_VALUE)                             \
     P(Math)                                  \
     P(NEGATIVE_INFINITY)                     \
     P(NaN)                                   \
diff --git a/Userland/Libraries/LibJS/Runtime/NumberConstructor.cpp b/Userland/Libraries/LibJS/Runtime/NumberConstructor.cpp
index cf53d2e4f6..57d07fb555 100644
--- a/Userland/Libraries/LibJS/Runtime/NumberConstructor.cpp
+++ b/Userland/Libraries/LibJS/Runtime/NumberConstructor.cpp
@@ -40,6 +40,8 @@ void NumberConstructor::initialize(GlobalObject& global_object)
     define_property(vm.names.prototype, global_object.number_prototype(), 0);
     define_property(vm.names.length, Value(1), Attribute::Configurable);
     define_property(vm.names.EPSILON, Value(EPSILON_VALUE), 0);
+    define_property(vm.names.MAX_VALUE, Value(NumericLimits<double>::max()), 0);
+    define_property(vm.names.MIN_VALUE, Value(NumericLimits<double>::min()), 0);
     define_property(vm.names.MAX_SAFE_INTEGER, Value(MAX_SAFE_INTEGER_VALUE), 0);
     define_property(vm.names.MIN_SAFE_INTEGER, Value(MIN_SAFE_INTEGER_VALUE), 0);
     define_property(vm.names.NEGATIVE_INFINITY, js_negative_infinity(), 0);