diff --git a/tests/dsp/firmware_update.cpp b/tests/dsp/firmware_update.cpp
index db1a10d..878ba75 100644
--- a/tests/dsp/firmware_update.cpp
+++ b/tests/dsp/firmware_update.cpp
@@ -9,6 +9,7 @@
 #include <bitset>
 #include <cstdint>
 #include <cstring>
+#include <span>
 #include <string>
 #include <string_view>
 #include <vector>