diff --git a/lldb/source/Commands/CommandObjectWatchpoint.cpp b/lldb/source/Commands/CommandObjectWatchpoint.cpp
index d3b2243..8d907ae 100644
--- a/lldb/source/Commands/CommandObjectWatchpoint.cpp
+++ b/lldb/source/Commands/CommandObjectWatchpoint.cpp
@@ -1096,7 +1096,7 @@
             output_stream.EOL();
             result.SetStatus(eReturnStatusSuccessFinishResult);
         } else {
-            result.AppendErrorWithFormat("Watchpoint creation failed (addr=0x%llx, size=%lu, variable expression='%s').\n",
+            result.AppendErrorWithFormat("Watchpoint creation failed (addr=0x%" PRIx64 ", size=%lu, variable expression='%s').\n",
                                          addr, size, command.GetArgumentAtIndex(0));
             if (error.AsCString(NULL))
                 result.AppendError(error.AsCString());
@@ -1286,7 +1286,7 @@
             output_stream.EOL();
             result.SetStatus(eReturnStatusSuccessFinishResult);
         } else {
-            result.AppendErrorWithFormat("Watchpoint creation failed (addr=0x%llx, size=%lu).\n",
+            result.AppendErrorWithFormat("Watchpoint creation failed (addr=0x%" PRIx64 ", size=%lu).\n",
                                          addr, size);
             if (error.AsCString(NULL))
                 result.AppendError(error.AsCString());