diff --git a/libraries/AP_Scripting/AP_Scripting.cpp b/libraries/AP_Scripting/AP_Scripting.cpp
index 8dc40aad59fdc..0ae7913e4e3d4 100644
--- a/libraries/AP_Scripting/AP_Scripting.cpp
+++ b/libraries/AP_Scripting/AP_Scripting.cpp
@@ -380,6 +380,7 @@ bool AP_Scripting::arming_checks(size_t buflen, char *buffer) const
     lua_scripts::get_last_error_semaphore()->take_blocking();
     const char *error_buf = lua_scripts::get_last_error_message();
     if (error_buf != nullptr) {
+        buflen = buflen < 44 ? buflen : 43;
         hal.util->snprintf(buffer, buflen, "Scripting: %s", error_buf);
         lua_scripts::get_last_error_semaphore()->give();
         return false;
diff --git a/libraries/AP_Scripting/lua_scripts.cpp b/libraries/AP_Scripting/lua_scripts.cpp
index 5a55e302d2164..a33ba0fba316f 100644
--- a/libraries/AP_Scripting/lua_scripts.cpp
+++ b/libraries/AP_Scripting/lua_scripts.cpp
@@ -68,6 +68,9 @@ void lua_scripts::print_error(MAV_SEVERITY severity) {
         return;
     }
     last_print_ms = AP_HAL::millis();
+    if (strlen(error_msg_buf) > 44) {
+        error_msg_buf[45] = 0;
+    }
     GCS_SEND_TEXT(severity, "Lua: %s", error_msg_buf);
     error_msg_buf_sem.give();
 }