diff --git a/import/src/aggregate_tsm_schema/update_catalog.rs b/import/src/aggregate_tsm_schema/update_catalog.rs
index 6e1373d8bc..5522730af8 100644
--- a/import/src/aggregate_tsm_schema/update_catalog.rs
+++ b/import/src/aggregate_tsm_schema/update_catalog.rs
@@ -945,7 +945,7 @@ mod tests {
             .repositories()
             .await
             .topics()
-            .create_or_get("iox_shared")
+            .create_or_get("iox-shared")
             .await
             .expect("topic created");
         let (connection, _join_handle, requests) = create_test_shard_service(MapToShardResponse {
@@ -984,8 +984,8 @@ mod tests {
         let agg_schema: AggregateTSMSchema = json.try_into().unwrap();
         update_iox_catalog(
             &agg_schema,
-            "iox_shared",
-            Some("iox_shared"),
+            "iox-shared",
+            Some("iox-shared"),
             Some("inf"),
             Arc::clone(&catalog),
             connection,
diff --git a/querier/src/cache/read_buffer.rs b/querier/src/cache/read_buffer.rs
index c9baf6076f..78128d0aee 100644
--- a/querier/src/cache/read_buffer.rs
+++ b/querier/src/cache/read_buffer.rs
@@ -201,7 +201,7 @@ async fn read_buffer_chunk_from_stream(
     let schema = stream.schema();
 
     // create "global" metric object, so that we don't blow up prometheus w/ too many metrics
-    let metrics = ChunkMetrics::new(metric_registry, "iox_shared");
+    let metrics = ChunkMetrics::new(metric_registry, "iox-shared");
 
     let mut builder = read_buffer::RBChunkBuilder::new(schema).with_metrics(metrics);
 
@@ -512,7 +512,7 @@ mod tests {
             .get_instrument("read_buffer_row_group_total")
             .unwrap();
         let v = g
-            .get_observer(&Attributes::from(&[("db_name", "iox_shared")]))
+            .get_observer(&Attributes::from(&[("db_name", "iox-shared")]))
             .unwrap()
             .fetch();