diff --git a/SUMMARY.md b/SUMMARY.md
index 797e66c..5a2086e 100644
--- a/SUMMARY.md
+++ b/SUMMARY.md
@@ -3,7 +3,7 @@
 * [Introduction](README.md)
 * [Linux](linux/README.md)
   * [Debian/Ubuntu](linux/debian-ubuntu/README.md)
-    * [Clear up legacy kernels](linux/debian-ubuntu/clear-up-legacy-kernels.md)
+    * [Clean up legacy kernels](linux/debian-ubuntu/clear-up-legacy-kernels.md)
 * [Utilities](utilities/README.md)
   * [CURL](utilities/curl.md)
 * [Help](help.md)
diff --git a/linux/debian-ubuntu/clear-up-legacy-kernels.md b/linux/debian-ubuntu/clear-up-legacy-kernels.md
index daf4d07..4a6b25b 100644
--- a/linux/debian-ubuntu/clear-up-legacy-kernels.md
+++ b/linux/debian-ubuntu/clear-up-legacy-kernels.md
@@ -1,4 +1,4 @@
-# Clear up legacy kernels
+# Clean up legacy kernels
 
 ## Check current kernel version