diff --git a/tools/gradle.py b/tools/gradle.py
index 1945557..64e6d51 100755
--- a/tools/gradle.py
+++ b/tools/gradle.py
@@ -14,7 +14,10 @@
 
 GRADLE_DIR = os.path.join(utils.REPO_ROOT, 'third_party', 'gradle')
 GRADLE_SHA1 = os.path.join(GRADLE_DIR, 'gradle.tar.gz.sha1')
-GRADLE = os.path.join(GRADLE_DIR, 'gradle', 'bin', 'gradle')
+if os.name == 'nt':
+  GRADLE = os.path.join(GRADLE_DIR, 'gradle', 'bin', 'gradle.bat')
+else:
+  GRADLE = os.path.join(GRADLE_DIR, 'gradle', 'bin', 'gradle')
 
 def PrintCmd(s):
   if type(s) is list: