diff --git a/src/freqs/cli/query.rs b/src/freqs/cli/query.rs
index c7dc9e84..0bf96d4f 100644
--- a/src/freqs/cli/query.rs
+++ b/src/freqs/cli/query.rs
@@ -86,6 +86,8 @@ pub fn open_rocksdb_from_args(
 }
 
 /// Enumeration of possible result records.
+#[derive(Debug, serde::Serialize, serde::Deserialize)]
+#[serde(rename_all = "snake_case")]
 pub enum Record {
     /// Record for autosomal variant.
     Autosomal(freqs::serialized::auto::Record),
diff --git a/src/gnomad_sv/cli/query.rs b/src/gnomad_sv/cli/query.rs
index 14aa3521..c0755894 100644
--- a/src/gnomad_sv/cli/query.rs
+++ b/src/gnomad_sv/cli/query.rs
@@ -111,7 +111,8 @@ pub fn open_rocksdb_from_args(
 }
 
 /// Enumeration for the different record types that we have.
-#[derive(Debug)]
+#[derive(Debug, serde::Serialize, serde::Deserialize)]
+#[serde(rename_all = "snake_case")]
 pub enum Record {
     /// ExAC SV record.
     ExacCnv(crate::gnomad_pbs::exac_cnv::Record),