1 files changed, 1 insertions, 1 deletions
diff --git a/include/llvm/Target/TargetELFWriterInfo.h b/include/llvm/Target/TargetELFWriterInfo.h
index a8332dfd8d..ba44f4adba 100644
--- a/include/llvm/Target/TargetELFWriterInfo.h
+++ b/include/llvm/Target/TargetELFWriterInfo.h
@@ -32,7 +32,7 @@ namespace llvm {
       EM_386 = 3
     };
 
-    TargetELFWriterInfo(MachineType machine) : EMachine(machine) {}
+    explicit TargetELFWriterInfo(MachineType machine) : EMachine(machine) {}
     virtual ~TargetELFWriterInfo() {}
 
     unsigned short getEMachine() const { return EMachine; }