diff --git a/debian/patches/clang-riscv64-rv64gc.diff b/debian/patches/clang-riscv64-rv64gc.diff
deleted file mode 100644
index 17275888..00000000
--- a/debian/patches/clang-riscv64-rv64gc.diff
+++ /dev/null
@@ -1,38 +0,0 @@
-Index: llvm-toolchain-9_9.0.0/clang/lib/Driver/ToolChains/Arch/RISCV.cpp
-===================================================================
---- llvm-toolchain-9_9.0.0.orig/clang/lib/Driver/ToolChains/Arch/RISCV.cpp
-+++ llvm-toolchain-9_9.0.0/clang/lib/Driver/ToolChains/Arch/RISCV.cpp
-@@ -350,6 +350,13 @@ void riscv::getRISCVTargetFeatures(const
- 
-     // Handle all other types of extensions.
-     getExtensionFeatures(D, Args, Features, MArch, OtherExts);
-+  } else {
-+    // Default to imafdc aka gc
-+    Features.push_back("+m");
-+    Features.push_back("+a");
-+    Features.push_back("+f");
-+    Features.push_back("+d");
-+    Features.push_back("+c");
-   }
- 
-   // -mrelax is default, unless -mno-relax is specified.
-@@ -375,5 +382,5 @@ StringRef riscv::getRISCVABI(const ArgLi
-   if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ))
-     return A->getValue();
- 
--  return Triple.getArch() == llvm::Triple::riscv32 ? "ilp32" : "lp64";
-+  return Triple.getArch() == llvm::Triple::riscv32 ? "ilp32" : "lp64d";
- }
-Index: llvm-toolchain-9_9.0.0/clang/lib/Driver/ToolChains/Clang.cpp
-===================================================================
---- llvm-toolchain-9_9.0.0.orig/clang/lib/Driver/ToolChains/Clang.cpp
-+++ llvm-toolchain-9_9.0.0/clang/lib/Driver/ToolChains/Clang.cpp
-@@ -1862,7 +1862,7 @@ void Clang::AddRISCVTargetArgs(const Arg
-   else if (Triple.getArch() == llvm::Triple::riscv32)
-     ABIName = "ilp32";
-   else if (Triple.getArch() == llvm::Triple::riscv64)
--    ABIName = "lp64";
-+    ABIName = "lp64d";
-   else
-     llvm_unreachable("Unexpected triple!");
-