diff --git a/graalpython/com.oracle.graal.python.test/src/tests/test_threading.py b/graalpython/com.oracle.graal.python.test/src/tests/test_threading.py
index e3af32a7e8..0bf2a6ecfa 100644
--- a/graalpython/com.oracle.graal.python.test/src/tests/test_threading.py
+++ b/graalpython/com.oracle.graal.python.test/src/tests/test_threading.py
@@ -173,3 +173,10 @@ def test_blocking_os_read_thread_does_not_deadlock_import_re():
     )
     assert result.returncode == 0, result.stderr
     assert result.stdout.rstrip().endswith("ok"), result.stdout
+
+
+def test_rlock_new_ignores_arguments():
+    import _thread
+
+    assert type(_thread.RLock(0)) is _thread.RLock
+    assert type(_thread.RLock(x=1)) is _thread.RLock
diff --git a/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/thread/RLockBuiltins.java b/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/thread/RLockBuiltins.java
index 7e39fd9078..b0f93cb3ea 100644
--- a/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/thread/RLockBuiltins.java
+++ b/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/thread/RLockBuiltins.java
@@ -52,6 +52,7 @@
 import com.oracle.graal.python.builtins.PythonBuiltins;
 import com.oracle.graal.python.builtins.objects.PNone;
 import com.oracle.graal.python.builtins.objects.common.SequenceStorageNodes;
+import com.oracle.graal.python.builtins.objects.function.PKeyword;
 import com.oracle.graal.python.builtins.objects.tuple.PTuple;
 import com.oracle.graal.python.builtins.objects.type.TpSlots;
 import com.oracle.graal.python.builtins.objects.type.TypeNodes;
@@ -62,6 +63,7 @@
 import com.oracle.graal.python.nodes.function.PythonBuiltinBaseNode;
 import com.oracle.graal.python.nodes.function.builtins.PythonBinaryBuiltinNode;
 import com.oracle.graal.python.nodes.function.builtins.PythonUnaryBuiltinNode;
+import com.oracle.graal.python.nodes.function.builtins.PythonVarargsBuiltinNode;
 import com.oracle.graal.python.nodes.util.CastToJavaUnsignedLongNode;
 import com.oracle.graal.python.runtime.GilNode;
 import com.oracle.graal.python.runtime.exception.PythonErrorType;
@@ -85,11 +87,12 @@ protected List<? extends NodeFactory<? extends PythonBuiltinBaseNode>> getNodeFa
     }
 
     @Slot(value = SlotKind.tp_new, isComplex = true)
-    @SlotSignature(name = "RLock", minNumOfPositionalArgs = 1)
+    @SlotSignature(name = "RLock", minNumOfPositionalArgs = 1, takesVarArgs = true, takesVarKeywordArgs = true)
     @GenerateNodeFactory
-    public abstract static class ConstructRLockNode extends PythonUnaryBuiltinNode {
+    public abstract static class ConstructRLockNode extends PythonVarargsBuiltinNode {
+        @SuppressWarnings("unused")
         @Specialization
-        PRLock construct(Object cls,
+        PRLock construct(Object cls, Object[] arguments, PKeyword[] keywords,
                         @Cached TypeNodes.GetInstanceShape getInstanceShape) {
             return PFactory.createRLock(cls, getInstanceShape.execute(cls));
         }