diff --git a/lib/techniques/blind/inference.py b/lib/techniques/blind/inference.py
index c9f468313..3b7a177a3 100644
--- a/lib/techniques/blind/inference.py
+++ b/lib/techniques/blind/inference.py
@@ -520,7 +520,7 @@ def bisection(payload, expression, length=None, charsetType=None, firstChar=None
         if finalValue is not None:
             finalValue = decodeHexValue(finalValue) if conf.hexConvert else finalValue
             hashDBWrite(expression, finalValue)
-        else:
+        elif partialValue:
             hashDBWrite(expression, "%s%s" % (PARTIAL_VALUE_MARKER, partialValue))
 
     if conf.verbose in (1, 2) or showEta: