diff --git a/PAM/ssh/include/rublon/configuration.hpp b/PAM/ssh/include/rublon/configuration.hpp
index ea23bb3..240a8e3 100644
--- a/PAM/ssh/include/rublon/configuration.hpp
+++ b/PAM/ssh/include/rublon/configuration.hpp
@@ -44,7 +44,6 @@ class Configuration {
 class ConfigurationReader {
   public:
     ConfigurationReader(std::pmr::memory_resource * memResource, std::string_view filepath) : memoryResource(memResource) {
-        keyValues.reserve(20);
         loadFromFile(filepath);
     }