diff --git a/src/sound/fmodsound.cpp b/src/sound/fmodsound.cpp
index 81bbfb8c1..e45385210 100644
--- a/src/sound/fmodsound.cpp
+++ b/src/sound/fmodsound.cpp
@@ -971,6 +971,7 @@ bool FMODSoundRenderer::Init()
 
 #if FMOD_STUDIO
 	FMOD_ADVANCEDSETTINGS advSettings = {};
+	advSettings.cbSize = sizeof advSettings;
 	advSettings.resamplerMethod = resampler;
 	result = Sys->setAdvancedSettings(&advSettings);
 	if (result != FMOD_OK)