diff --git a/src/security/validator.cpp b/src/security/validator.cpp
index d3af387..f0f87b7 100644
--- a/src/security/validator.cpp
+++ b/src/security/validator.cpp
@@ -117,7 +117,7 @@
 {
   const Name& name = interest.getName();
 
-  if (name.size() < signed_interest::MIN_LENGTH_SIG_ONLY)
+  if (name.size() < signed_interest::MIN_SIZE)
     return false;
 
   Signature sig;