diff --git a/llvm/core.py b/llvm/core.py
index 7535b0f..945dd86 100644
--- a/llvm/core.py
+++ b/llvm/core.py
@@ -2186,8 +2186,8 @@ class Builder(llvm.Wrapper):
     def xor(self, lhs, rhs, name=""):
         return _make_value(self._ptr.CreateXor(lhs._ptr, rhs._ptr, name))
 
-    def neg(self, val, name=""):
-        return _make_value(self._ptr.CreateNeg(val._ptr, name))
+    def neg(self, val, name="", nuw=False, nsw=False):
+        return _make_value(self._ptr.CreateNeg(val._ptr, name, nuw, nsw))
 
     def not_(self, val, name=""):
         return _make_value(self._ptr.CreateNot(val._ptr, name))
diff --git a/llvm/test_llvmpy.py b/llvm/test_llvmpy.py
index 250e404..2a5c1f5 100644
--- a/llvm/test_llvmpy.py
+++ b/llvm/test_llvmpy.py
@@ -1509,6 +1509,13 @@ class TestNUWNSW(TestCase):
     def test_shl_nuw_nsw(self):
         self._test_template(Builder.shl, 'shl')
 
+    def test_neg_nuw_nsw(self):
+        mod, func, bldr = self.make_module()
+        a, b = func.args
+        self.has_nsw(bldr.neg(a, nsw=True), 'sub')
+        self.has_nuw(bldr.neg(a, nuw=True), 'sub')
+
+
 tests.append(TestNUWNSW)