diff --git a/lldb/test/API/functionalities/gdb_remote_client/TestMemoryRegionDirtyPages.py b/lldb/test/API/functionalities/gdb_remote_client/TestMemoryRegionDirtyPages.py
--- a/lldb/test/API/functionalities/gdb_remote_client/TestMemoryRegionDirtyPages.py
+++ b/lldb/test/API/functionalities/gdb_remote_client/TestMemoryRegionDirtyPages.py
@@ -19,9 +19,9 @@
                 if addr == 0x100000000:
                     return "start:100000000;size:4000;permissions:rx;dirty-pages:;"
                 if addr == 0x100004000:
-                    return "start:100004000;size:4000;permissions:r;dirty-pages:0x100004000;"
+                    return "start:100004000;size:4000;permissions:r;dirty-pages:100004000;"
                 if addr == 0x1000a2000:
-                    return "start:1000a2000;size:5000;permissions:r;dirty-pages:0x1000a2000,0x1000a3000,0x1000a4000,0x1000a5000,0x1000a6000;"
+                    return "start:1000a2000;size:5000;permissions:r;dirty-pages:1000a2000,1000a3000,1000a4000,1000a5000,1000a6000;"
 
         self.server.responder = MyResponder()
         target = self.dbg.CreateTarget('')
diff --git a/lldb/tools/debugserver/source/RNBRemote.cpp b/lldb/tools/debugserver/source/RNBRemote.cpp
--- a/lldb/tools/debugserver/source/RNBRemote.cpp
+++ b/lldb/tools/debugserver/source/RNBRemote.cpp
@@ -4306,7 +4306,7 @@
         if (!first)
           ostrm << ",";
         first = false;
-        ostrm << "0x" << std::hex << addr;
+        ostrm << std::hex << addr;
       }
     }
     ostrm << ";";