diff --git a/amf/public/include/core/AudioBuffer.h b/amf/public/include/core/AudioBuffer.h
index 7382fc0..34f8adc 100644
--- a/amf/public/include/core/AudioBuffer.h
+++ b/amf/public/include/core/AudioBuffer.h
@@ -85,7 +85,7 @@ namespace amf
     } AMF_AUDIO_CHANNEL_LAYOUT;
 
     // get the most common layout for a given number of speakers
-    inline int GetDefaultChannelLayout(int channels)
+    static inline int GetDefaultChannelLayout(int channels)
     {
         switch (channels)
         {