diff --git a/clang/lib/Driver/ToolChains/SPIRV.h b/clang/lib/Driver/ToolChains/SPIRV.h
index bb2904f761289..3cd613d9aac29 100644
--- a/clang/lib/Driver/ToolChains/SPIRV.h
+++ b/clang/lib/Driver/ToolChains/SPIRV.h
@@ -17,9 +17,6 @@ namespace driver {
 namespace tools {
 namespace SPIRV {
 
-void addTranslatorArgs(const llvm::opt::ArgList &InArgs,
-                       llvm::opt::ArgStringList &OutArgs);
-
 void constructTranslateCommand(Compilation &C, const Tool &T,
                                const JobAction &JA, const InputInfo &Output,
                                const InputInfo &Input,