diff --git a/media/libeffects/downmix/EffectDownmix.c b/media/libeffects/downmix/EffectDownmix.c
index 4ee05f2..d25dc9b 100644
--- a/media/libeffects/downmix/EffectDownmix.c
+++ b/media/libeffects/downmix/EffectDownmix.c
@@ -629,7 +629,9 @@
         return -EINVAL;
     }
 
-    memcpy(&pDwmModule->config, pConfig, sizeof(effect_config_t));
+    if (&pDwmModule->config != pConfig) {
+        memcpy(&pDwmModule->config, pConfig, sizeof(effect_config_t));
+    }
 
     if (init) {
         pDownmixer->type = DOWNMIX_TYPE_FOLD;