diff --git a/axlearn/common/compiler_options.py b/axlearn/common/compiler_options.py
index c1c056cd..bff095c0 100644
--- a/axlearn/common/compiler_options.py
+++ b/axlearn/common/compiler_options.py
@@ -144,7 +144,7 @@ def xla_flags_from_options(xla_options: dict[str, Union[str, bool, int]]) -> str
     flags = []
     for k, v in xla_options.items():
         if isinstance(v, bool):
-            v = "1" if v else "0"
+            v = "true" if v else "false"
         flags.append(f"--{k}={v}")
     return " ".join(flags)
 
diff --git a/axlearn/common/compiler_options_test.py b/axlearn/common/compiler_options_test.py
index ff146c2e..ed26f5da 100644
--- a/axlearn/common/compiler_options_test.py
+++ b/axlearn/common/compiler_options_test.py
@@ -24,10 +24,10 @@ def f(x: Tensor) -> Tensor:
         )
         self.assertEqual(f_compiled(5), 15)
 
-    def atest_xla_flags_from_options(self):
+    def test_xla_flags_from_options(self):
         options = dict(a="true", b="false", c=True, d=False, long_option_name=True)
         result = compiler_options.xla_flags_from_options(options)
-        self.assertEqual(result, "--a=true --b=false --c=1 --d=0 --long_option_name=1")
+        self.assertEqual(result, "--a=true --b=false --c=true --d=false --long_option_name=true")
 
     def test_xsc_compiler_options(self):
         options = compiler_options.infer_xsc_compiler_options(