diff --git a/runtime/indent/glsl.vim b/runtime/indent/glsl.vim
new file mode 100644
index 0000000..4ebee60
--- /dev/null
+++ b/runtime/indent/glsl.vim
@@ -0,0 +1,14 @@
+" Language: OpenGL Shading Language
+" Maintainer: Gregory Anders <greg@gpanders.com>
+" Last Modified: 2024 Jul 21
+" Upstream: https://github.com/tikhomirov/vim-glsl
+
+if exists('b:did_indent')
+  finish
+endif
+let b:did_indent = 1
+
+setlocal autoindent cindent
+setlocal cinoptions&
+
+let b:undo_indent = 'setl ai< ci< cino<'