diff --git a/book/src/generated/lang-support.md b/book/src/generated/lang-support.md
index c1b0acfd..9d036b73 100644
--- a/book/src/generated/lang-support.md
+++ b/book/src/generated/lang-support.md
@@ -44,6 +44,7 @@
 | forth | ✓ |  |  | `forth-lsp` |
 | fortran | ✓ |  | ✓ | `fortls` |
 | fsharp | ✓ |  |  | `fsautocomplete` |
+| gas | ✓ | ✓ |  |  |
 | gdscript | ✓ | ✓ | ✓ |  |
 | gemini | ✓ |  |  |  |
 | git-attributes | ✓ |  |  |  |
diff --git a/languages.toml b/languages.toml
index 37d2e94c..a6ff9c67 100644
--- a/languages.toml
+++ b/languages.toml
@@ -2495,7 +2495,7 @@ source = { git = "https://github.com/erasin/tree-sitter-po", rev = "417cee9abb20
 [[language]]
 name = "nasm"
 scope = "source.nasm"
-file-types = ["asm", "s", "S", "nasm"]
+file-types = ["asm", "S", "nasm"]
 injection-regex = "n?asm"
 roots = []
 comment-token = ";"
@@ -2505,6 +2505,19 @@ indent = { tab-width = 8, unit = "        " }
 name = "nasm"
 source = { git = "https://github.com/naclsn/tree-sitter-nasm", rev = "a0db15db6fcfb1bf2cc8702500e55e558825c48b" }
 
+[[language]]
+name = "gas"
+scope = "source.gas"
+file-types = ["s"]
+injection-regex = "gas"
+roots = []
+comment-token = "#"
+indent = { tab-width = 8, unit = "        " }
+
+[[grammar]]
+name = "gas"
+source = { git = "https://github.com/sirius94/tree-sitter-gas", rev = "60f443646b20edee3b7bf18f3a4fb91dc214259a" }
+
 [[language]]
 name = "rst"
 scope = "source.rst"
diff --git a/runtime/queries/gas/highlights.scm b/runtime/queries/gas/highlights.scm
new file mode 100644
index 00000000..46cefcba
--- /dev/null
+++ b/runtime/queries/gas/highlights.scm
@@ -0,0 +1,21 @@
+(comment) @comment
+(number) @constant.numeric
+(directive_name) @keyword.directive
+(symbol) @variable
+(label) @function
+(label)
+(instruction_prefix) @keyword
+(instruction_name) @function.special
+(register) @constant.builtin
+(string) @string
+(char) @constant.character
+(type) @type
+(constant "$" @constant)
+(operand_modifier) @attribute
+
+(expression
+  ["-" "+" "*" "/" "="] @operator)
+
+["(" ")"] @punctuation.bracket
+
+["," ":"] @punctuation.delimiter
diff --git a/runtime/queries/gas/injections.scm b/runtime/queries/gas/injections.scm
new file mode 100644
index 00000000..2f0e58eb
--- /dev/null
+++ b/runtime/queries/gas/injections.scm
@@ -0,0 +1,2 @@
+((comment) @injection.content
+  (#set! injection.language "comment"))
diff --git a/runtime/queries/gas/textobjects.scm b/runtime/queries/gas/textobjects.scm
new file mode 100644
index 00000000..4465c876
--- /dev/null
+++ b/runtime/queries/gas/textobjects.scm
@@ -0,0 +1,2 @@
+(comment) @comment.inside
+(comment)+ @comment.around