diff --git a/cpython-unix/build-zstd.sh b/cpython-unix/build-zstd.sh
index e81ef781..e9b830c3 100755
--- a/cpython-unix/build-zstd.sh
+++ b/cpython-unix/build-zstd.sh
@@ -57,7 +57,7 @@ index 5e6e8bc..6ca72a1 100644
 EOF
 fi
 
-CFLAGS="${EXTRA_TARGET_CFLAGS} -fPIC" LDFLAGS="${EXTRA_TARGET_LDFLAGS}" make -j ${NUM_CPUS} libzstd.a
+CFLAGS="${EXTRA_TARGET_CFLAGS} -DZSTD_MULTITHREAD -fPIC" LDFLAGS="${EXTRA_TARGET_LDFLAGS}" make -j ${NUM_CPUS} libzstd.a
 make -j ${NUM_CPUS} install-static DESTDIR=${ROOT}/out
 make -j ${NUM_CPUS} install-includes DESTDIR=${ROOT}/out
-make -j ${NUM_CPUS} install-pc DESTDIR=${ROOT}/out
+MT=1 make -j ${NUM_CPUS} install-pc DESTDIR=${ROOT}/out
diff --git a/src/verify_distribution.py b/src/verify_distribution.py
index d6e428d6..62e787b0 100644
--- a/src/verify_distribution.py
+++ b/src/verify_distribution.py
@@ -172,6 +172,15 @@ def test_gil_disabled(self):
 
         self.assertEqual(sysconfig.get_config_var("Py_GIL_DISABLED"), wanted)
 
+    @unittest.skipIf(
+        sys.version_info[:2] < (3, 14),
+        "zstd is only available in 3.14+",
+    )
+    def test_zstd_multithreaded(self):
+        from compression import zstd
+
+        assert zstd.CompressionParameter.nb_workers.bounds() == (0, 256)
+
     @unittest.skipIf("TCL_LIBRARY" not in os.environ, "TCL_LIBRARY not set")
     @unittest.skipIf("DISPLAY" not in os.environ, "DISPLAY not set")
     def test_tkinter(self):