diff --git a/addons/addon-ligatures/src/index.ts b/addons/addon-ligatures/src/index.ts
index fb8e85e73..2fc664f5b 100644
--- a/addons/addon-ligatures/src/index.ts
+++ b/addons/addon-ligatures/src/index.ts
@@ -21,7 +21,7 @@ const CACHE_SIZE = 100000;
 
 /**
  * Enable ligature support for the provided Terminal instance. To function
- * properly, this must be called after `open()` is called on the therminal. If
+ * properly, this must be called after `open()` is called on the terminal. If
  * the font currently in use supports ligatures, the terminal will automatically
  * start to render them.
  * @param term Terminal instance from xterm.js
diff --git a/addons/addon-serialize/src/SerializeAddon.ts b/addons/addon-serialize/src/SerializeAddon.ts
index 26ede1c41..e1728feb2 100644
--- a/addons/addon-serialize/src/SerializeAddon.ts
+++ b/addons/addon-serialize/src/SerializeAddon.ts
@@ -221,7 +221,7 @@ class StringSerializeHandler extends BaseSerializeHandler {
             // you can't use control sequence to move cursor to (x === row)
             (thisRowLastChar.getChars() || thisRowLastChar.getWidth() === 0) &&
             // change background of the first wrapped cell also affects BCE
-            // so we mark it as invalid to simply the process to determine line separator
+            // so we mark it as invalid to simplify the process to determine line separator
             equalBg(thisRowLastChar, nextRowFirstChar)
           ) {
             isValid = true;
@@ -233,7 +233,7 @@ class StringSerializeHandler extends BaseSerializeHandler {
             isNextRowFirstCharDoubleWidth &&
             (thisRowLastSecondChar.getChars() || thisRowLastSecondChar.getWidth() === 0) &&
             // change background of the first wrapped cell also affects BCE
-            // so we mark it as invalid to simply the process to determine line separator
+            // so we mark it as invalid to simplify the process to determine line separator
             equalBg(thisRowLastChar, nextRowFirstChar) &&
             equalBg(thisRowLastSecondChar, nextRowFirstChar)
           ) {