diff --git a/PA01-0906/Makefile_Win b/PA01-0906/Makefile_Win
index 87c154c..8d07827 100644
--- a/PA01-0906/Makefile_Win
+++ b/PA01-0906/Makefile_Win
@@ -2,10 +2,10 @@ CC = gcc -Wall
 SOURCES = PA01_Main.c EncryptionUtility.c Console_IO_Utility.c File_Input_Utility.c File_Output_Utility.c
 OBJECTS = PA01_Main.o EncryptionUtility.o Console_IO_Utility.o File_Input_Utility.o File_Output_Utility.o
 
-all: PA01_Main.out
+all: PA01_Main
 
 PA01_Main: $(OBJECTS)
-	$(CC) $(OBJECTS) -o PA01_Main
+	$(CC) $(OBJECTS) -o PA01_Main.exe
 
 PA01_Main.o: PA01_Main.c
 	$(CC) -c PA01_Main.c -o PA01_Main.o