diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5f4be5ce..d348cf67 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,9 @@
 
 Changes prior to the next official version change will appear here.
 
+* Language Servers:
+    * Add further file extensions considered by the language servers for Python (.pyi), JavaScript (.jsx) and TypeScript (.tsx, .jsx) 
+
 # 2025-04-07
 
 > **Breaking Config Changes**: make sure to set `ignore_all_files_in_gitignore`, remove `ignore_dirs`
diff --git a/src/multilspy/multilspy_config.py b/src/multilspy/multilspy_config.py
index c78759c4..a93f1225 100644
--- a/src/multilspy/multilspy_config.py
+++ b/src/multilspy/multilspy_config.py
@@ -41,13 +41,13 @@ class Language(str, Enum):
     def get_source_fn_matcher(self) -> FilenameMatcher:
         match self:
             case self.PYTHON:
-                return FilenameMatcher("*.py")
+                return FilenameMatcher("*.py", "*.pyi")
             case self.JAVA:
                 return FilenameMatcher("*.java")
             case self.TYPESCRIPT:
-                return FilenameMatcher("*.ts", "*.js")
+                return FilenameMatcher("*.ts", "*.js", "*.jsx", "*.tsx")
             case self.JAVASCRIPT:
-                return FilenameMatcher("*.js")
+                return FilenameMatcher("*.js", "*.jsx")
             case self.CSHARP:
                 return FilenameMatcher("*.cs")
             case self.RUST: