diff --git a/migrations/0001_JMDict.sql b/migrations/0001_JMDict.sql
index 8e904b3..c6b29ab 100644
--- a/migrations/0001_JMDict.sql
+++ b/migrations/0001_JMDict.sql
@@ -50,6 +50,8 @@ CREATE TABLE "JMdict_KanjiElement" (
   PRIMARY KEY ("entryId", "reading")
 ) WITHOUT ROWID;
 
+CREATE INDEX "JMdict_KanjiElement_byReading" ON "JMdict_KanjiElement"("reading");
+
 CREATE TABLE "JMdict_KanjiElementInfo" (
   "entryId" INTEGER NOT NULL,
   "reading" TEXT NOT NULL,
@@ -74,6 +76,8 @@ CREATE TABLE "JMdict_ReadingElement" (
   PRIMARY KEY ("entryId", "reading")
 ) WITHOUT ROWID;
 
+CREATE INDEX "JMdict_ReadingElement_byReading" ON "JMdict_ReadingElement"("reading");
+
 CREATE TABLE "JMdict_ReadingElementRestriction" (
   "entryId" INTEGER NOT NULL,
   "reading" TEXT NOT NULL,
@@ -216,6 +220,8 @@ CREATE TABLE "JMdict_SenseGlossary" (
   PRIMARY KEY ("senseId", "language", "phrase")
 ) WITHOUT ROWID;
 
+CREATE INDEX "JMdict_SenseGlossary_byPhrase" ON JMdict_SenseGlossary("phrase");
+
 CREATE TABLE "JMdict_SenseInfo" (
   "senseId" INTEGER NOT NULL REFERENCES "JMdict_Sense"("id"),
   "info" TEXT NOT NULL,