diff --git a/products/jbrowse-cli/src/types/gff3Adapter.ts b/products/jbrowse-cli/src/types/gff3Adapter.ts
index 69891228d7..0b7ecfbd02 100644
--- a/products/jbrowse-cli/src/types/gff3Adapter.ts
+++ b/products/jbrowse-cli/src/types/gff3Adapter.ts
@@ -23,6 +23,7 @@ export async function* indexGff3(
   const progressBar = new SingleBar(
     {
       format: '{bar} ' + trackId + ' {percentage}% | ETA: {eta}s',
+      etaBuffer: 200,
     },
     Presets.shades_classic,
   )
diff --git a/products/jbrowse-cli/src/types/gtfAdapter.ts b/products/jbrowse-cli/src/types/gtfAdapter.ts
index be37b2e20a..ac9f8e88aa 100644
--- a/products/jbrowse-cli/src/types/gtfAdapter.ts
+++ b/products/jbrowse-cli/src/types/gtfAdapter.ts
@@ -23,6 +23,7 @@ export async function* indexGtf(
   const progressBar = new SingleBar(
     {
       format: '{bar} ' + trackId + ' {percentage}% | ETA: {eta}s',
+      etaBuffer: 200,
     },
     Presets.shades_classic,
   )
diff --git a/products/jbrowse-cli/src/types/vcfAdapter.ts b/products/jbrowse-cli/src/types/vcfAdapter.ts
index 81be184df2..987a030f4b 100644
--- a/products/jbrowse-cli/src/types/vcfAdapter.ts
+++ b/products/jbrowse-cli/src/types/vcfAdapter.ts
@@ -23,6 +23,7 @@ export async function* indexVcf(
   const progressBar = new SingleBar(
     {
       format: '{bar} ' + trackId + ' {percentage}% | ETA: {eta}s',
+      etaBuffer: 200,
     },
     Presets.shades_classic,
   )