diff --git a/chain/src/main/scala/org/bitcoins/chain/models/BlockHeaderDAO.scala b/chain/src/main/scala/org/bitcoins/chain/models/BlockHeaderDAO.scala
index e19058e31a..067d7b049e 100644
--- a/chain/src/main/scala/org/bitcoins/chain/models/BlockHeaderDAO.scala
+++ b/chain/src/main/scala/org/bitcoins/chain/models/BlockHeaderDAO.scala
@@ -191,7 +191,7 @@ case class BlockHeaderDAO()(
     result
   }
 
-  private def maxHeightQuery: SQLiteProfile.ProfileAction[
+  private val maxHeightQuery: SQLiteProfile.ProfileAction[
     Int,
     NoStream,
     Effect.Read] = {
diff --git a/chain/src/main/scala/org/bitcoins/chain/models/CompactFilterDAO.scala b/chain/src/main/scala/org/bitcoins/chain/models/CompactFilterDAO.scala
index 0c408396b7..1a4dc86bfa 100644
--- a/chain/src/main/scala/org/bitcoins/chain/models/CompactFilterDAO.scala
+++ b/chain/src/main/scala/org/bitcoins/chain/models/CompactFilterDAO.scala
@@ -64,7 +64,7 @@ case class CompactFilterDAO()(
     result
   }
 
-  private def maxHeightQuery: SQLiteProfile.ProfileAction[
+  private val maxHeightQuery: SQLiteProfile.ProfileAction[
     Int,
     NoStream,
     Effect.Read] = {
diff --git a/chain/src/main/scala/org/bitcoins/chain/models/CompactFilterHeaderDAO.scala b/chain/src/main/scala/org/bitcoins/chain/models/CompactFilterHeaderDAO.scala
index e17680791d..817ef9fe70 100644
--- a/chain/src/main/scala/org/bitcoins/chain/models/CompactFilterHeaderDAO.scala
+++ b/chain/src/main/scala/org/bitcoins/chain/models/CompactFilterHeaderDAO.scala
@@ -76,7 +76,7 @@ case class CompactFilterHeaderDAO()(
     result
   }
 
-  private def maxHeightQuery: SQLiteProfile.ProfileAction[
+  private val maxHeightQuery: SQLiteProfile.ProfileAction[
     Int,
     NoStream,
     Effect.Read] = {