diff --git a/libs/sdl2/source/audio_engine.cpp b/libs/sdl2/source/audio_engine.cpp
index a694935d..6cbef475 100644
--- a/libs/sdl2/source/audio_engine.cpp
+++ b/libs/sdl2/source/audio_engine.cpp
@@ -13,6 +13,7 @@
 #include <vector>
 #include <optional>
 #include <cmath>
+#include <iomanip>
 
 namespace psemek::sdl2
 {