diff --git a/src/mesh/RadioInterface.cpp b/src/mesh/RadioInterface.cpp
index 118aab5a6..f211bb7df 100644
--- a/src/mesh/RadioInterface.cpp
+++ b/src/mesh/RadioInterface.cpp
@@ -281,7 +281,7 @@ void printPacket(const char *prefix, const meshtastic_MeshPacket *p)
     if (p->priority != 0)
         out += DEBUG_PORT.mt_sprintf(" priority=%d", p->priority);
 
-    out + ")\n";
+    out += ")\n";
     LOG_DEBUG("%s", out.c_str());
 }