diff --git a/pythonforandroid/build.py b/pythonforandroid/build.py
index c9f9d99d27..c2b37af5e4 100644
--- a/pythonforandroid/build.py
+++ b/pythonforandroid/build.py
@@ -352,6 +352,7 @@ def prepare_build_environment(self, user_sdk_dir, user_ndk_dir,
         arch = self.archs[0]
         platform_dir = arch.platform_dir
         toolchain_prefix = arch.toolchain_prefix
+        toolchain_version = None
         self.ndk_platform = join(
             self.ndk_dir,
             'platforms',