diff --git a/build.bat b/build.bat
new file mode 100644
index 0000000..f534175
--- /dev/null
+++ b/build.bat
@@ -0,0 +1,3 @@
+@echo off
+pyinstaller build.spec
+pyinstaller build_upx.spec --upx-dir=upx\
diff --git a/build.spec b/build.spec
index cfdeb0a..376acef 100644
--- a/build.spec
+++ b/build.spec
@@ -4,7 +4,7 @@
 block_cipher = None
 
 
-a = Analysis(['prog.py'],
+a = Analysis(['main.py'],
              pathex=[],
              binaries=[],
              datas=[],
diff --git a/build_upx.spec b/build_upx.spec
index f48e175..e17c8b0 100644
--- a/build_upx.spec
+++ b/build_upx.spec
@@ -4,7 +4,7 @@
 block_cipher = None
 
 
-a = Analysis(['prog.py'],
+a = Analysis(['main.py'],
              pathex=[],
              binaries=[],
              datas=[],