diff --git a/packages/opencode/src/lsp/language.ts b/packages/opencode/src/lsp/language.ts
index 58f4c8488ba..9c5e0a956bc 100644
--- a/packages/opencode/src/lsp/language.ts
+++ b/packages/opencode/src/lsp/language.ts
@@ -109,6 +109,8 @@ export const LANGUAGE_EXTENSIONS: Record<string, string> = {
   ".zig": "zig",
   ".zon": "zig",
   ".astro": "astro",
+  ".bicep": "bicep",
+  ".bicepparam": "bicep-params",
   ".ml": "ocaml",
   ".mli": "ocaml",
   ".tf": "terraform",