1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/MC/MCSectionMachO.cpp b/llvm/lib/MC/MCSectionMachO.cpp
index e771556262a..fc323155bef 100644
--- a/llvm/lib/MC/MCSectionMachO.cpp
+++ b/llvm/lib/MC/MCSectionMachO.cpp
@@ -165,9 +165,9 @@ bool MCSectionMachO::isVirtualSection() const {
 
 /// StripSpaces - This removes leading and trailing spaces from the StringRef.
 static void StripSpaces(StringRef &Str) {
-  while (!Str.empty() && isspace(Str[0]))
+  while (!Str.empty() && isspace(static_cast<unsigned char>(Str[0])))
     Str = Str.substr(1);
-  while (!Str.empty() && isspace(Str.back()))
+  while (!Str.empty() && isspace(static_cast<unsigned char>(Str.back())))
     Str = Str.substr(0, Str.size()-1);
 }