diff --git a/packages/renderer/src/lib/container/ContainerDetailsTerminal.svelte b/packages/renderer/src/lib/container/ContainerDetailsTerminal.svelte
index 7a6e5109d76b2..b7c1eb84d09b6 100644
--- a/packages/renderer/src/lib/container/ContainerDetailsTerminal.svelte
+++ b/packages/renderer/src/lib/container/ContainerDetailsTerminal.svelte
@@ -91,6 +91,10 @@ async function refreshTerminal() {
   if (existingTerminal) {
     sendCallbackId = existingTerminal.callbackId;
     shellTerminal = existingTerminal.terminal;
+    shellTerminal.options = {
+      fontSize,
+      lineHeight,
+    };
   } else {
     shellTerminal = new Terminal({
       fontSize,