diff --git a/include/tests_crypto b/include/tests_crypto
index 4f7f1ff4..e22dcfe1 100644
--- a/include/tests_crypto
+++ b/include/tests_crypto
@@ -144,7 +144,7 @@
 	fi
       done
       Display --indent 2 --text "- Found ${FOUND} LUKS encrypted block devices." --result OK --color WHITE
-      unset BLOCK_DEV
+      unset BLOCK_DEV FOUND
     fi
 #
 #################################################################################