diff --git a/src/commands/mod.rs b/src/commands/mod.rs
index 03b9eec..ea6873f 100644
--- a/src/commands/mod.rs
+++ b/src/commands/mod.rs
@@ -17,7 +17,7 @@ pub enum Commands {
         #[arg(short, long, value_name = "Required for latest schedule excel file")]
         file: PathBuf,
 
-        #[arg(short, long, value_name = "Required for excel sheet name")]
+        #[arg(short, long, value_name = "Excel sheet name. Default set to 'Jadwal Kuliah'", default_value = "Jadwal Kuliah")]
         sheet: String,
 
         #[arg(short, long, value_name = "Required for output path")]
@@ -38,7 +38,7 @@ pub enum Commands {
         #[arg(short, long, value_name = "Required for excel file path")]
         file: PathBuf,
 
-        #[arg(short, long, value_name = "Required for excel sheet name")]
+        #[arg(short, long, value_name = "Excel sheet name. Default set to 'Jadwal Kuliah'", default_value = "Jadwal Kuliah")]
         sheet: String,
 
         #[arg(
@@ -54,7 +54,7 @@ pub enum Commands {
         #[arg(short, long, value_name = "Required for excel file path")]
         file: PathBuf,
 
-        #[arg(short, long, value_name = "Required for excel sheet name")]
+        #[arg(short, long, value_name = "Excel sheet name. Default set to 'Jadwal Kuliah'", default_value = "Jadwal Kuliah")]
         sheet: String,
 
         #[arg(short, long, value_name = "Required for class subject name to find")]