diff --git a/dlls/ntdll/debugtools.c b/dlls/ntdll/debugtools.c
index cbbf74417be..eb43224967d 100644
--- a/dlls/ntdll/debugtools.c
+++ b/dlls/ntdll/debugtools.c
@@ -39,6 +39,7 @@
 #include "ntdll_misc.h"
 
 WINE_DECLARE_DEBUG_CHANNEL(tid);
+WINE_DECLARE_DEBUG_CHANNEL(pid);
 WINE_DECLARE_DEBUG_CHANNEL(timestamp);
 
 static struct __wine_debug_functions default_funcs;
@@ -170,6 +171,8 @@ static int NTDLL_dbg_vlog( enum __wine_debug_class cls, struct __wine_debug_chan
             ULONG ticks = NtGetTickCount();
             ret = wine_dbg_printf( "%3u.%03u:", ticks / 1000, ticks % 1000 );
         }
+        if (TRACE_ON(pid))
+            ret += wine_dbg_printf( "%04x:", GetCurrentProcessId() );
         if (TRACE_ON(tid))
             ret += wine_dbg_printf( "%04x:", GetCurrentThreadId() );
         if (cls < sizeof(classes)/sizeof(classes[0]))
diff --git a/libs/wine/debug.c b/libs/wine/debug.c
index 548ef22c919..8b04ef994cb 100644
--- a/libs/wine/debug.c
+++ b/libs/wine/debug.c
@@ -35,6 +35,7 @@
 
 #if defined(__MINGW32__) || defined(_MSC_VER)
 WINE_DECLARE_DEBUG_CHANNEL(tid);
+WINE_DECLARE_DEBUG_CHANNEL(pid);
 #endif
 
 static const char * const debug_classes[] = { "fixme", "err", "warn", "trace" };
@@ -407,6 +408,8 @@ static int default_dbg_vlog( enum __wine_debug_class cls, struct __wine_debug_ch
     int ret = 0;
 
 #if defined(__MINGW32__) || defined(_MSC_VER)
+    if (TRACE_ON(pid))
+        ret += wine_dbg_printf( "%04x:", GetCurrentProcessId() );
     if (TRACE_ON(tid))
         ret += wine_dbg_printf( "%04x:", GetCurrentThreadId() );
 #endif