diff --git a/ftplugin/c.vim b/ftplugin/c.vim
index 9dc43db..220a21b 100644
--- a/ftplugin/c.vim
+++ b/ftplugin/c.vim
@@ -1,3 +1,3 @@
 if has('pythonx')
-  set formatexpr=format#clang_format()
+  setlocal formatexpr=format#clang_format()
 endif
diff --git a/ftplugin/cpp.vim b/ftplugin/cpp.vim
index e4180d6..8c4f410 100644
--- a/ftplugin/cpp.vim
+++ b/ftplugin/cpp.vim
@@ -2,5 +2,5 @@
 setlocal matchpairs+=<:>
 
 if has('pythonx')
-  set formatexpr=format#clang_format()
+  setlocal formatexpr=format#clang_format()
 endif
diff --git a/ftplugin/java.vim b/ftplugin/java.vim
index 9dc43db..220a21b 100644
--- a/ftplugin/java.vim
+++ b/ftplugin/java.vim
@@ -1,3 +1,3 @@
 if has('pythonx')
-  set formatexpr=format#clang_format()
+  setlocal formatexpr=format#clang_format()
 endif
diff --git a/ftplugin/javascript.vim b/ftplugin/javascript.vim
index 9dc43db..220a21b 100644
--- a/ftplugin/javascript.vim
+++ b/ftplugin/javascript.vim
@@ -1,3 +1,3 @@
 if has('pythonx')
-  set formatexpr=format#clang_format()
+  setlocal formatexpr=format#clang_format()
 endif
diff --git a/ftplugin/objc.vim b/ftplugin/objc.vim
index 9dc43db..220a21b 100644
--- a/ftplugin/objc.vim
+++ b/ftplugin/objc.vim
@@ -1,3 +1,3 @@
 if has('pythonx')
-  set formatexpr=format#clang_format()
+  setlocal formatexpr=format#clang_format()
 endif
diff --git a/ftplugin/objcpp.vim b/ftplugin/objcpp.vim
index 9dc43db..220a21b 100644
--- a/ftplugin/objcpp.vim
+++ b/ftplugin/objcpp.vim
@@ -1,3 +1,3 @@
 if has('pythonx')
-  set formatexpr=format#clang_format()
+  setlocal formatexpr=format#clang_format()
 endif
diff --git a/ftplugin/proto.vim b/ftplugin/proto.vim
index 9dc43db..220a21b 100644
--- a/ftplugin/proto.vim
+++ b/ftplugin/proto.vim
@@ -1,3 +1,3 @@
 if has('pythonx')
-  set formatexpr=format#clang_format()
+  setlocal formatexpr=format#clang_format()
 endif
diff --git a/ftplugin/python.vim b/ftplugin/python.vim
index b7b6a68..e12406c 100644
--- a/ftplugin/python.vim
+++ b/ftplugin/python.vim
@@ -1,3 +1,3 @@
 if has('pythonx')
-  set formatexpr=format#yapf()
+  setlocal formatexpr=format#yapf()
 endif