diff --git a/clang/lib/Driver/ToolChains/Fuchsia.cpp b/clang/lib/Driver/ToolChains/Fuchsia.cpp
--- a/clang/lib/Driver/ToolChains/Fuchsia.cpp
+++ b/clang/lib/Driver/ToolChains/Fuchsia.cpp
@@ -466,6 +466,7 @@
   SanitizerMask Res;
   switch (getTriple().getArch()) {
   case llvm::Triple::aarch64:
+  case llvm::Triple::riscv64:
     Res |= SanitizerKind::ShadowCallStack;
     break;
   case llvm::Triple::x86_64:
diff --git a/clang/test/Driver/fuchsia.c b/clang/test/Driver/fuchsia.c
--- a/clang/test/Driver/fuchsia.c
+++ b/clang/test/Driver/fuchsia.c
@@ -31,6 +31,7 @@
 // CHECK: "-isysroot" "[[SYSROOT:[^"]+]]"
 // CHECK: "-internal-externc-isystem" "[[SYSROOT]]{{/|\\\\}}include"
 // CHECK-AARCH64: "-fsanitize=shadow-call-stack"
+// CHECK-RISCV64: "-fsanitize=shadow-call-stack"
 // CHECK-X86_64: "-fsanitize=safe-stack"
 // CHECK: "-stack-protector" "2"
 // CHECK-AARCH64: "-target-feature" "+outline-atomics"