diff --git a/src/utils/testCaseRunner.ts b/src/utils/testCaseRunner.ts
index 9e0015a..44da550 100644
--- a/src/utils/testCaseRunner.ts
+++ b/src/utils/testCaseRunner.ts
@@ -165,9 +165,7 @@ function getProcessForRunning(filePath: string) {
         case 'rs':
             return compileAndRunRust(filePath);
         case 'kt':
-            return childProcess.spawn('kotlinc', [filePath, '-include-runtime', '-d', 'Program.jar'])
-                .on('close', () => childProcess.spawn('java', ['-jar', 'Program.jar']));
-
+            return compileAndRunKotlin(filePath);
         case 'swift':
             return childProcess.spawn('swift', [filePath]);
 
@@ -192,6 +190,26 @@ function compileAndRunC(filePath: string) {
     return compileAndRun(filePath, 'gcc');
 }
 
+function compileAndRunKotlin(filePath: string) {
+    const fileDir = path.dirname(filePath);
+    const jarFile = path.join(fileDir, 'Program.jar');  
+    
+    const config = vscode.workspace.getConfiguration('BOJ-Tester');
+    const customOptions = config.get<{ [key: string]: string }>('customCommandOption', {});
+
+    let compileCommand: string;
+    if (customOptions['kt']) {
+        const options = customOptions['kt'].split(' ');
+        compileCommand = `kotlinc ${options.join(' ')} "${filePath}" -include-runtime -d "${jarFile}"`;
+    } else {
+        compileCommand = `kotlinc "${filePath}" -include-runtime -d "${jarFile}"`;
+    }
+    
+    execSync(compileCommand);
+    return childProcess.spawn('java', ['-jar', jarFile])
+        .on('close', () => childProcess.spawn(process.platform === 'win32' ? 'del' : 'rm', [jarFile]));
+}
+
 function compileAndRun(filePath: string, compiler: 'gcc' | 'g++' | 'rustc') {
     const extension = filePath.split('.').pop()?.toLowerCase() as string;
     const outputFile = filePath.replace(/\.(c|cpp|rs)$/, '');