diff --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp
index 0952262c36018..75379e0a00b98 100644
--- a/clang/lib/Driver/ToolChains/Clang.cpp
+++ b/clang/lib/Driver/ToolChains/Clang.cpp
@@ -1341,6 +1341,7 @@ static bool isSignedCharDefault(const llvm::Triple &Triple) {
     return false;
 
   case llvm::Triple::hexagon:
+  case llvm::Triple::msp430:
   case llvm::Triple::ppcle:
   case llvm::Triple::ppc64le:
   case llvm::Triple::riscv32:
diff --git a/clang/test/Driver/msp430-char.c b/clang/test/Driver/msp430-char.c
new file mode 100644
index 0000000000000..67954e3e2a1be
--- /dev/null
+++ b/clang/test/Driver/msp430-char.c
@@ -0,0 +1,4 @@
+/// Check that char is unsigned by default.
+// RUN: %clang -### %s --target=msp430 -c 2>&1 | FileCheck %s
+// CHECK: "-cc1" "-triple" "msp430"
+// CHECK-SAME: "-fno-signed-char"