diff --git a/CHANGELOG.md b/CHANGELOG.md
index a792d9e..614d940 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,10 @@ Procedure when bumping the version number:
 
 ## Unreleased
 
+### Changed
+- Renamed `json-stream` export format to `json-lines` (see <https://jsonlines.org/>)
+- Changed `json-lines` file extension from `.json` to `.jsonl`
+
 ### Fixed
 - Crash when window is too small while empty message editor is visible
 - Mistakes in output and docs
diff --git a/cove/src/export.rs b/cove/src/export.rs
index 9d9c60b..0ad9414 100644
--- a/cove/src/export.rs
+++ b/cove/src/export.rs
@@ -14,8 +14,9 @@ pub enum Format {
     Text,
     /// Array of message objects in the same format as the euphoria API uses.
     Json,
-    /// Message objects in the same format as the euphoria API uses, one per line.
-    JsonStream,
+    /// Message objects in the same format as the euphoria API uses, one per
+    /// line (https://jsonlines.org/).
+    JsonLines,
 }
 
 impl Format {
@@ -23,14 +24,15 @@ impl Format {
         match self {
             Self::Text => "text",
             Self::Json => "json",
-            Self::JsonStream => "json stream",
+            Self::JsonLines => "json lines",
         }
     }
 
     fn extension(&self) -> &'static str {
         match self {
             Self::Text => "txt",
-            Self::Json | Self::JsonStream => "json",
+            Self::Json => "json",
+            Self::JsonLines => "jsonl",
         }
     }
 }
@@ -78,7 +80,7 @@ async fn export_room<W: Write>(
     match format {
         Format::Text => text::export(vault, out).await?,
         Format::Json => json::export(vault, out).await?,
-        Format::JsonStream => json::export_stream(vault, out).await?,
+        Format::JsonLines => json::export_lines(vault, out).await?,
     }
     Ok(())
 }
diff --git a/cove/src/export/json.rs b/cove/src/export/json.rs
index e72a0b8..9c16e46 100644
--- a/cove/src/export/json.rs
+++ b/cove/src/export/json.rs
@@ -37,7 +37,7 @@ pub async fn export<W: Write>(vault: &EuphRoomVault, file: &mut W) -> anyhow::Re
     Ok(())
 }
 
-pub async fn export_stream<W: Write>(vault: &EuphRoomVault, file: &mut W) -> anyhow::Result<()> {
+pub async fn export_lines<W: Write>(vault: &EuphRoomVault, file: &mut W) -> anyhow::Result<()> {
     let mut total = 0;
     let mut last_msg_id = None;
     loop {