diff --git a/llvm/utils/gn/secondary/llvm/lib/AsmParser/BUILD.gn b/llvm/utils/gn/secondary/llvm/lib/AsmParser/BUILD.gn
index 9ff794f7c9b32..2ad867dc80001 100644
--- a/llvm/utils/gn/secondary/llvm/lib/AsmParser/BUILD.gn
+++ b/llvm/utils/gn/secondary/llvm/lib/AsmParser/BUILD.gn
@@ -6,6 +6,7 @@ static_library("AsmParser") {
     "//llvm/lib/Support",
   ]
   sources = [
+    "AsmParserContext.cpp",
     "LLLexer.cpp",
     "LLParser.cpp",
     "Parser.cpp",