diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1033bc0c..a742e6fd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -21,6 +21,7 @@
 - Syntax highlighting for Python files using uv as script runner in shebang #3689 (@janlarres)
 
 ## Bugfixes
+- Fix inverted `$LESSCLOSE` warning so bat warns on nonzero exit, not on success. See #3654 (@cuiweixie)
 - Sanitize control characters in filenames before displaying them in the file header, error messages, and the terminal title, preventing ANSI escape injection via crafted filenames. Closes #3054, see #3691 (@curious-rabbit)
 - Report initial input read errors instead of treating them as empty input. Closes #3002, see #3706 (@lawrence3699)
 - Treat ZIP archives as binary content based on their magic header, see #3686 (@officialasishkumar)
diff --git a/src/lessopen.rs b/src/lessopen.rs
index 116206ba..c7593b53 100644
--- a/src/lessopen.rs
+++ b/src/lessopen.rs
@@ -261,7 +261,7 @@ impl Drop for Preprocessed {
                 }
             };
 
-            if lessclose_output.status.success() {
+            if !lessclose_output.status.success() {
                 bat_warning!("$LESSCLOSE exited with nonzero exit code",)
             };
         }