diff --git a/crates/agent/src/active_thread.rs b/crates/agent/src/active_thread.rs
index c0d42bf5a2fafeed2e3b308118e9edca4e5d4684..623b8efefced45a42c3e0f1db2aefb7c41d601b4 100644
--- a/crates/agent/src/active_thread.rs
+++ b/crates/agent/src/active_thread.rs
@@ -487,7 +487,7 @@ fn render_markdown_code_block(
         .copied_code_block_ids
         .contains(&(message_id, ix));
 
-    let can_expand = metadata.line_count > MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK;
+    let can_expand = metadata.line_count >= MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK;
 
     let is_expanded = if can_expand {
         active_thread
@@ -2356,7 +2356,7 @@ impl ActiveThread {
 
                                             move |el, range, metadata, _, cx| {
                                                 let can_expand = metadata.line_count
-                                                    > MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK;
+                                                    >= MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK;
                                                 if !can_expand {
                                                     return el;
                                                 }