1 files changed, 2 insertions, 0 deletions
diff --git a/src/vdbeInt.h b/src/vdbeInt.h
index fb49898a1..a56dedf6a 100644
--- a/src/vdbeInt.h
+++ b/src/vdbeInt.h
@@ -337,6 +337,8 @@ struct Vdbe {
   void *pFree;            /* Free this when deleting the vdbe */
 #ifdef SQLITE_DEBUG
   FILE *trace;            /* Write an execution trace here, if not NULL */
+#endif
+#ifdef SQLITE_ENABLE_TREE_EXPLAIN
   Explain *pExplain;      /* The explainer */
   char *zExplain;         /* Explanation of data structures */
 #endif