Index: src/mutex_w32.c
==================================================================
--- src/mutex_w32.c
+++ src/mutex_w32.c
@@ -192,12 +192,12 @@
   switch( iType ){
     case SQLITE_MUTEX_FAST:
     case SQLITE_MUTEX_RECURSIVE: {
       p = sqlite3MallocZero( sizeof(*p) );
       if( p ){
-#ifdef SQLITE_DEBUG
         p->id = iType;
+#ifdef SQLITE_DEBUG
 #ifdef SQLITE_WIN32_MUTEX_TRACE_DYNAMIC
         p->trace = 1;
 #endif
 #endif
 #if SQLITE_OS_WINRT
@@ -214,12 +214,12 @@
         (void)SQLITE_MISUSE_BKPT;
         return 0;
       }
 #endif
       p = &winMutex_staticMutexes[iType-2];
-#ifdef SQLITE_DEBUG
       p->id = iType;
+#ifdef SQLITE_DEBUG
 #ifdef SQLITE_WIN32_MUTEX_TRACE_STATIC
       p->trace = 1;
 #endif
 #endif
       break;