diff --git a/programs/winedbg/gdbproxy.c b/programs/winedbg/gdbproxy.c
index 83ad5ef3535..2d20c6a4f5c 100644
--- a/programs/winedbg/gdbproxy.c
+++ b/programs/winedbg/gdbproxy.c
@@ -587,7 +587,7 @@ static BOOL handle_debug_event(struct gdb_context* gdbctx, BOOL stop_on_dll_load
         return TRUE;
 
     case UNLOAD_DLL_DEBUG_EVENT:
-        fprintf(stderr, "%08lx:%08lx: unload DLL @%p\n",
+        fprintf(stderr, "%04lx:%04lx: unload DLL @%p\n",
                 de->dwProcessId, de->dwThreadId, de->u.UnloadDll.lpBaseOfDll);
         SymUnloadModule(gdbctx->process->handle,
                         (DWORD_PTR)de->u.UnloadDll.lpBaseOfDll);
@@ -596,16 +596,16 @@ static BOOL handle_debug_event(struct gdb_context* gdbctx, BOOL stop_on_dll_load
         return TRUE;
 
     case EXCEPTION_DEBUG_EVENT:
-        TRACE("%08lx:%08lx: exception code=0x%08lx\n", de->dwProcessId,
-            de->dwThreadId, de->u.Exception.ExceptionRecord.ExceptionCode);
+        TRACE("%04lx:%04lx: exception code=0x%08lx\n", de->dwProcessId,
+              de->dwThreadId, de->u.Exception.ExceptionRecord.ExceptionCode);
 
         if (handle_exception(gdbctx, &de->u.Exception))
             return TRUE;
         break;
 
     case CREATE_THREAD_DEBUG_EVENT:
-        fprintf(stderr, "%08lx:%08lx: create thread D @%p\n", de->dwProcessId,
-            de->dwThreadId, de->u.CreateThread.lpStartAddress);
+        fprintf(stderr, "%04lx:%04lx: create thread D @%p\n", de->dwProcessId,
+                de->dwThreadId, de->u.CreateThread.lpStartAddress);
 
         dbg_add_thread(gdbctx->process,
                        de->dwThreadId,
@@ -614,14 +614,14 @@ static BOOL handle_debug_event(struct gdb_context* gdbctx, BOOL stop_on_dll_load
         return TRUE;
 
     case EXIT_THREAD_DEBUG_EVENT:
-        fprintf(stderr, "%08lx:%08lx: exit thread (%lu)\n",
+        fprintf(stderr, "%04lx:%04lx: exit thread (%lu)\n",
                 de->dwProcessId, de->dwThreadId, de->u.ExitThread.dwExitCode);
         if ((thread = dbg_get_thread(gdbctx->process, de->dwThreadId)))
             dbg_del_thread(thread);
         return TRUE;
 
     case EXIT_PROCESS_DEBUG_EVENT:
-        fprintf(stderr, "%08lx:%08lx: exit process (%lu)\n",
+        fprintf(stderr, "%04lx:%04lx: exit process (%lu)\n",
                 de->dwProcessId, de->dwThreadId, de->u.ExitProcess.dwExitCode);
 
         dbg_del_process(gdbctx->process);
@@ -632,18 +632,18 @@ static BOOL handle_debug_event(struct gdb_context* gdbctx, BOOL stop_on_dll_load
         memory_get_string(gdbctx->process,
                           de->u.DebugString.lpDebugStringData, TRUE,
                           de->u.DebugString.fUnicode, u.bufferA, sizeof(u.bufferA));
-        fprintf(stderr, "%08lx:%08lx: output debug string (%s)\n",
-            de->dwProcessId, de->dwThreadId, debugstr_a(u.bufferA));
+        fprintf(stderr, "%04lx:%04lx: output debug string (%s)\n",
+                de->dwProcessId, de->dwThreadId, debugstr_a(u.bufferA));
         return TRUE;
 
     case RIP_EVENT:
-        fprintf(stderr, "%08lx:%08lx: rip error=%lu type=%lu\n", de->dwProcessId,
-            de->dwThreadId, de->u.RipInfo.dwError, de->u.RipInfo.dwType);
+        fprintf(stderr, "%04lx:%04lx: rip error=%lu type=%lu\n", de->dwProcessId,
+                de->dwThreadId, de->u.RipInfo.dwError, de->u.RipInfo.dwType);
         return TRUE;
 
     default:
-        FIXME("%08lx:%08lx: unknown event (%lu)\n",
-            de->dwProcessId, de->dwThreadId, de->dwDebugEventCode);
+        FIXME("%04lx:%04lx: unknown event (%lu)\n",
+              de->dwProcessId, de->dwThreadId, de->dwDebugEventCode);
     }
 
     LIST_FOR_EACH_ENTRY(thread, &gdbctx->process->threads, struct dbg_thread, entry)