diff --git a/extensions/defaults.json b/extensions/defaults.json
index 7c3e512..08cd543 100644
--- a/extensions/defaults.json
+++ b/extensions/defaults.json
@@ -116,7 +116,7 @@
     }
   },
   "changelog": {
-    "lastversion": "2.4.1"
+    "lastversion": "2.4.2"
   },
   "icons": {
     "theme": {
@@ -304,4 +304,4 @@
     "_folder_root_dark",
     "_folder_root_light"
   ]
-}
+}
\ No newline at end of file
diff --git a/src/icons/partials/fileExtensions.js b/src/icons/partials/fileExtensions.js
index a47a24c..5ce0350 100644
--- a/src/icons/partials/fileExtensions.js
+++ b/src/icons/partials/fileExtensions.js
@@ -143,7 +143,7 @@
   "jsp": "_file_java",
   "c": "_file_c",
   "h": "_file_c",
-  "m": "_file_c",
+  "m": "_file_matlab",
   "cc": "_file_cpp",
   "cpp": "_file_cpp",
   "c++": "_file_cpp",