diff --git a/libavfilter/af_volumedetect.c b/libavfilter/af_volumedetect.c
index 01f24baea0..4815bccf6b 100644
--- a/libavfilter/af_volumedetect.c
+++ b/libavfilter/af_volumedetect.c
@@ -78,7 +78,7 @@ static inline double logdb(uint64_t v)
     double d = v / (double)(0x8000 * 0x8000);
     if (!v)
         return MAX_DB;
-    return log(d) * -4.3429448190325182765112891891660508229; /* -10/log(10) */
+    return -log10(d) * 10;
 }
 
 static void print_stats(AVFilterContext *ctx)