diff --git a/src/validation.cpp b/src/validation.cpp
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -812,6 +812,9 @@
 
             return true;
         }
+
+        // transaction not found in index, nothing more can be done
+        return false;
     }
 
     // use coin database to locate block that contains transaction, and scan it