diff --git a/bin/jadb.dart b/bin/jadb.dart
index 7ac2dfc..5da6b22 100644
--- a/bin/jadb.dart
+++ b/bin/jadb.dart
@@ -47,8 +47,16 @@ class CreateDb extends Command {
 
     final db = await createDatabaseFactoryFfi(ffiInit: () {
       open.overrideForAll(
-          () => DynamicLibrary.open(argResults!.option('libsqlite')!));
-    }).openDatabase(Directory.current.uri.resolve('jadb.sqlite').path);
+        () => DynamicLibrary.open(argResults!.option('libsqlite')!),
+      );
+    }).openDatabase(
+      Directory.current.uri.resolve('jadb.sqlite').path,
+      options: OpenDatabaseOptions(
+        onOpen: (db) {
+          db.execute("PRAGMA foreign_keys = ON");
+        },
+      ),
+    );
 
     await addDataFromJMdict(db);
     await addDataFromRADKFILE(db);
@@ -74,9 +82,17 @@ class QueryKanji extends Command {
 
     final db = await createDatabaseFactoryFfi(ffiInit: () {
       open.overrideForAll(
-          () => DynamicLibrary.open(argResults!.option('libsqlite')!));
+        () => DynamicLibrary.open(argResults!.option('libsqlite')!),
+      );
     }).openDatabase(
-        Directory.current.uri.resolve(argResults!.option('jadb')!).path);
+      Directory.current.uri.resolve(argResults!.option('jadb')!).path,
+      options: OpenDatabaseOptions(
+        readOnly: true,
+        onOpen: (db) {
+          db.execute("PRAGMA foreign_keys = ON");
+        },
+      ),
+    );
 
     final result = await JaDBConnection(db).searchKanji('漢');
 
@@ -106,11 +122,19 @@ class QueryWord extends Command {
 
     final db = await createDatabaseFactoryFfi(ffiInit: () {
       open.overrideForAll(
-          () => DynamicLibrary.open(argResults!.option('libsqlite')!));
+        () => DynamicLibrary.open(argResults!.option('libsqlite')!),
+      );
     }).openDatabase(
-        Directory.current.uri.resolve(argResults!.option('jadb')!).path);
+      Directory.current.uri.resolve(argResults!.option('jadb')!).path,
+      options: OpenDatabaseOptions(
+        readOnly: true,
+        onOpen: (db) {
+          db.execute("PRAGMA foreign_keys = ON");
+        },
+      ),
+    );
 
-    final result = await JaDBConnection(db).searchWord('かな');
+    final result = await JaDBConnection(db).searchWord('kana');
 
     if (result == null) {
       print("Invalid search");