diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/explorer/ExplorerQueryRepository.kt b/src/main/kotlin/kr/co/vividnext/sodalive/explorer/ExplorerQueryRepository.kt
index f427501..e119fc9 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/explorer/ExplorerQueryRepository.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/explorer/ExplorerQueryRepository.kt
@@ -185,7 +185,7 @@ class ExplorerQueryRepository(
         val rotatedChars = characters.drop(offset) + characters.take(offset)
 
         val caseWhenClauses = rotatedChars.withIndex().joinToString(" ") {
-            "WHEN {0}.email LIKE '{1}%' THEN {2}".format(member, it.value, it.index + 1)
+            "WHEN ${member.email} LIKE '${it.value}%' THEN ${it.index + 1}"
         }
         val caseExpression = Expressions.stringTemplate("CASE $caseWhenClauses END")