diff --git a/tools/ndnsec/unlock-tpm.hpp b/tools/ndnsec/unlock-tpm.hpp
index 607efb1..2127848 100644
--- a/tools/ndnsec/unlock-tpm.hpp
+++ b/tools/ndnsec/unlock-tpm.hpp
@@ -29,7 +29,7 @@
 int
 ndnsec_unlock_tpm(int argc, char** argv)
 {
-#ifndef NDN_CXX_HAVE_GETPASS
+#ifdef NDN_CXX_HAVE_GETPASS
   using namespace ndn;
   namespace po = boost::program_options;
 
diff --git a/tools/ndnsec/util.hpp b/tools/ndnsec/util.hpp
index 2de9ff1..eaf2825 100644
--- a/tools/ndnsec/util.hpp
+++ b/tools/ndnsec/util.hpp
@@ -46,7 +46,7 @@
 bool
 getPassword(std::string& password, const std::string& prompt)
 {
-#ifndef NDN_CXX_HAVE_GETPASS
+#ifdef NDN_CXX_HAVE_GETPASS
   bool isReady = false;
 
   char* pw0 = 0;