diff --git a/src/security/command-interest-signer.cpp b/src/security/command-interest-signer.cpp
index 70e80a1..d4cb33a 100644
--- a/src/security/command-interest-signer.cpp
+++ b/src/security/command-interest-signer.cpp
@@ -56,6 +56,7 @@
 CommandInterestSigner::makeCommandInterest(const Name& name, const SigningInfo& params)
 {
   Interest commandInterest(prepareCommandInterestName(name));
+  commandInterest.setCanBePrefix(false);
   m_keyChain.sign(commandInterest, params);
   return commandInterest;
 }