diff --git a/lib/cppcheck.cpp b/lib/cppcheck.cpp
index af9b3730cbe..2826b32dfbd 100644
--- a/lib/cppcheck.cpp
+++ b/lib/cppcheck.cpp
@@ -1446,7 +1446,7 @@ void CppCheck::executeAddons(const std::vector<std::string>& files, const std::s
             if (obj.count("summary") > 0) {
                 if (obj.count("data") > 0) {
                     if (!mSettings.buildDir.empty()) {
-                        ctuInfo += res.serialize();
+                        ctuInfo += res.serialize() + "\n";
                     } else {
                         errmsg.severity = Severity::internal;
                         errmsg.id = "ctuinfo";