diff --git a/Alc/panning.c b/Alc/panning.c
index 754a8bb3..17282892 100644
--- a/Alc/panning.c
+++ b/Alc/panning.c
@@ -111,7 +111,7 @@ void ComputeBFormatGains(const ALCdevice *device, const ALfloat mtx[4], ALfloat
 }
 
 
-static inline const char *GetLabelFromChannel(enum Channel channel)
+DECL_CONST static inline const char *GetLabelFromChannel(enum Channel channel)
 {
     switch(channel)
     {