diff --git a/sjsonnet/src/sjsonnet/stdlib/TypeModule.scala b/sjsonnet/src/sjsonnet/stdlib/TypeModule.scala
index 4782f9e8..8750849e 100644
--- a/sjsonnet/src/sjsonnet/stdlib/TypeModule.scala
+++ b/sjsonnet/src/sjsonnet/stdlib/TypeModule.scala
@@ -179,8 +179,8 @@ object TypeModule extends AbstractFunctionModule {
         false
       } else {
         (x, y) match {
-          case (_: Val.Num, _: Val.Num) =>
-            ev.compare(x, y) == 0
+          case (x: Val.Num, y: Val.Num) =>
+            x.rawDouble == y.rawDouble
           case (_: Val.Str, _: Val.Str) =>
             ev.compare(x, y) == 0
           case (_: Val.Bool, _: Val.Bool) =>
diff --git a/sjsonnet/test/resources/new_test_suite/primitive_equals_negative_zero.jsonnet b/sjsonnet/test/resources/new_test_suite/primitive_equals_negative_zero.jsonnet
new file mode 100644
index 00000000..5c03cb13
--- /dev/null
+++ b/sjsonnet/test/resources/new_test_suite/primitive_equals_negative_zero.jsonnet
@@ -0,0 +1,9 @@
+// std.primitiveEquals must treat -0.0 and 0.0 as equal (IEEE 754 semantics).
+// This matches go-jsonnet and C++ jsonnet behavior.
+std.assertEqual(std.primitiveEquals(-0.0, 0.0), true) &&
+std.assertEqual(std.primitiveEquals(0.0, -0.0), true) &&
+std.assertEqual(std.primitiveEquals(-0.0, -0.0), true) &&
+std.assertEqual(std.primitiveEquals(0.0, 0.0), true) &&
+std.assertEqual(std.primitiveEquals(-0.0, 1.0), false) &&
+std.assertEqual(std.primitiveEquals(0.0, 1.0), false) &&
+true
diff --git a/sjsonnet/test/resources/new_test_suite/primitive_equals_negative_zero.jsonnet.golden b/sjsonnet/test/resources/new_test_suite/primitive_equals_negative_zero.jsonnet.golden
new file mode 100644
index 00000000..27ba77dd
--- /dev/null
+++ b/sjsonnet/test/resources/new_test_suite/primitive_equals_negative_zero.jsonnet.golden
@@ -0,0 +1 @@
+true