diff --git a/src/main.cpp b/src/main.cpp
index e9b23d4a7..148aa464e 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -6443,22 +6443,24 @@ bool InitBlockIndex() {
     {
         return true;
     }
-    // Use the provided setting for -txindex in the new database
-    fTxIndex = GetBoolArg("-txindex", true);
-    pblocktree->WriteFlag("txindex", fTxIndex);
-    // Use the provided setting for -addressindex in the new database
-    fAddressIndex = GetBoolArg("-addressindex", DEFAULT_ADDRESSINDEX);
-    pblocktree->WriteFlag("addressindex", fAddressIndex);
-
-    // Use the provided setting for -timestampindex in the new database
-    fTimestampIndex = GetBoolArg("-timestampindex", DEFAULT_TIMESTAMPINDEX);
-    pblocktree->WriteFlag("timestampindex", fTimestampIndex);
-
-    fSpentIndex = GetBoolArg("-spentindex", DEFAULT_SPENTINDEX);
-    pblocktree->WriteFlag("spentindex", fSpentIndex);
-    fprintf(stderr,"fAddressIndex.%d/%d fSpentIndex.%d/%d\n",fAddressIndex,DEFAULT_ADDRESSINDEX,fSpentIndex,DEFAULT_SPENTINDEX);
-    LogPrintf("Initializing databases...\n");
-
+    if ( pblocktree != 0 )
+    {
+        // Use the provided setting for -txindex in the new database
+        fTxIndex = GetBoolArg("-txindex", true);
+        pblocktree->WriteFlag("txindex", fTxIndex);
+        // Use the provided setting for -addressindex in the new database
+        fAddressIndex = GetBoolArg("-addressindex", DEFAULT_ADDRESSINDEX);
+        pblocktree->WriteFlag("addressindex", fAddressIndex);
+        
+        // Use the provided setting for -timestampindex in the new database
+        fTimestampIndex = GetBoolArg("-timestampindex", DEFAULT_TIMESTAMPINDEX);
+        pblocktree->WriteFlag("timestampindex", fTimestampIndex);
+        
+        fSpentIndex = GetBoolArg("-spentindex", DEFAULT_SPENTINDEX);
+        pblocktree->WriteFlag("spentindex", fSpentIndex);
+        fprintf(stderr,"fAddressIndex.%d/%d fSpentIndex.%d/%d\n",fAddressIndex,DEFAULT_ADDRESSINDEX,fSpentIndex,DEFAULT_SPENTINDEX);
+        LogPrintf("Initializing databases...\n");
+    }
     // Only add the genesis block if not reindexing (in which case we reuse the one already on disk)
     if (!fReindex) {
         try {