diff --git a/src/FAudioGMS.c b/src/FAudioGMS.c
index 78377c4..2f03802 100644
--- a/src/FAudioGMS.c
+++ b/src/FAudioGMS.c
@@ -1101,9 +1101,9 @@ void FAudioGMS_SoundInstance_SetVolume(double soundInstanceID, double volume)
     RETURN_ON_NULL_DEVICE()
     FAudioGMS_SoundInstance* instance = FAudioGMS_INTERNAL_LookupSoundInstance((uint32_t)soundInstanceID);
 
-    instance->adjustingVolumeOverTime = 0; /* override volume adjustment over time */
     if (instance != NULL)
     {
+        instance->adjustingVolumeOverTime = 0; /* override volume adjustment over time */
         FAudioGMS_INTERNAL_SoundInstance_SetVolume(instance, volume);
     }
 }