Index: source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
===================================================================
--- source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
+++ source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
@@ -3233,8 +3233,7 @@
         return UINT64_MAX;
     stream.PutCStringAsRawHex8(path.c_str());
     stream.PutChar(',');
-    const uint32_t posix_open_flags = File::ConvertOpenOptionsForPOSIXOpen(flags);
-    stream.PutHex32(posix_open_flags);
+    stream.PutHex32(flags);
     stream.PutChar(',');
     stream.PutHex32(mode);
     const char* packet = stream.GetData();
Index: source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerCommon.cpp
===================================================================
--- source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerCommon.cpp
+++ source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerCommon.cpp
@@ -567,7 +567,8 @@
     {
         if (packet.GetChar() == ',')
         {
-            uint32_t flags = packet.GetHexMaxU32(false, 0);
+            uint32_t flags = File::ConvertOpenOptionsForPOSIXOpen(
+                packet.GetHexMaxU32(false, 0));
             if (packet.GetChar() == ',')
             {
                 mode_t mode = packet.GetHexMaxU32(false, 0600);