diff --git a/utils/gn/secondary/llvm/lib/Target/AArch64/BUILD.gn b/utils/gn/secondary/llvm/lib/Target/AArch64/BUILD.gn
index 2a3fa89fbe3..d0d0164ee99 100644
--- a/utils/gn/secondary/llvm/lib/Target/AArch64/BUILD.gn
+++ b/utils/gn/secondary/llvm/lib/Target/AArch64/BUILD.gn
@@ -82,6 +82,7 @@ static_library("LLVMAArch64CodeGen") {
     "AArch64ConditionOptimizer.cpp",
     "AArch64ConditionalCompares.cpp",
     "AArch64DeadRegisterDefinitionsPass.cpp",
+    "AArch64ExpandImm.cpp",
     "AArch64ExpandPseudoInsts.cpp",
     "AArch64FalkorHWPFFix.cpp",
     "AArch64FastISel.cpp",