diff --git a/tests/pretty_printers.hpp b/tests/pretty_printers.hpp
index ab6b917..b459a11 100644
--- a/tests/pretty_printers.hpp
+++ b/tests/pretty_printers.hpp
@@ -199,3 +199,8 @@
 {
     return s << "Command SET {path: " << pathToSchemaString(cmd.m_path, Prefixes::Always) << ", type " << boost::core::demangle(cmd.m_data.type().name()) << ", data: " << leafDataToString(cmd.m_data) << "}";
 }
+
+std::ostream& operator<<(std::ostream& s, const prepare_ cmd)
+{
+    return s << "Command PREPARE {path: " << pathToDataString(cmd.m_path, Prefixes::Always) << "}";
+}