1 files changed, 2 insertions, 2 deletions
diff --git a/Alc/effects/distortion.cpp b/Alc/effects/distortion.cpp
index b3d339ad..58d05e8f 100644
--- a/Alc/effects/distortion.cpp
+++ b/Alc/effects/distortion.cpp
@@ -44,14 +44,14 @@ struct ALdistortionState final : public EffectState {
     ALfloat mBuffer[2][BUFFERSIZE]{};
 
 
-    ALboolean deviceUpdate(ALCdevice *device) override;
+    ALboolean deviceUpdate(const ALCdevice *device) override;
     void update(const ALCcontext *context, const ALeffectslot *slot, const ALeffectProps *props) override;
     void process(ALsizei samplesToDo, const ALfloat (*RESTRICT samplesIn)[BUFFERSIZE], ALfloat (*RESTRICT samplesOut)[BUFFERSIZE], ALsizei numChannels) override;
 
     DEF_NEWDEL(ALdistortionState)
 };
 
-ALboolean ALdistortionState::deviceUpdate(ALCdevice *UNUSED(device))
+ALboolean ALdistortionState::deviceUpdate(const ALCdevice *UNUSED(device))
 {
     mLowpass.clear();
     mBandpass.clear();