diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2f4936cd..160aadbe 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Fixed
+- `custom/script`: Output clearing when `exec-if` fails ([`#2674`](https://github.com/polybar/polybar/issues/2674))
 
 ## [3.6.2] - 2022-04-03
 ### Fixed
diff --git a/src/adapters/script_runner.cpp b/src/adapters/script_runner.cpp
index 23a791f4..c1742199 100644
--- a/src/adapters/script_runner.cpp
+++ b/src/adapters/script_runner.cpp
@@ -45,7 +45,10 @@ script_runner::interval script_runner::process() {
 }
 
 void script_runner::clear_output() {
-  set_output("");
+  auto changed = set_output("");
+  if (changed) {
+    m_on_update(m_data);
+  }
 }
 
 void script_runner::stop() {