diff --git a/src/dec/vp8l_dec.c b/src/dec/vp8l_dec.c
index ebb0e7b6..d60f5892 100644
--- a/src/dec/vp8l_dec.c
+++ b/src/dec/vp8l_dec.c
@@ -1417,7 +1417,9 @@ VP8LDecoder* VP8LNew(void) {
   return dec;
 }
 
-void VP8LClear(VP8LDecoder* const dec) {
+// Resets the decoder in its initial state, reclaiming memory.
+// Preserves the dec->status_ value.
+static void VP8LClear(VP8LDecoder* const dec) {
   int i;
   if (dec == NULL) return;
   ClearMetadata(&dec->hdr_);
diff --git a/src/dec/vp8li_dec.h b/src/dec/vp8li_dec.h
index 9a13bcc9..6f95b357 100644
--- a/src/dec/vp8li_dec.h
+++ b/src/dec/vp8li_dec.h
@@ -121,10 +121,6 @@ WEBP_NODISCARD int VP8LDecodeHeader(VP8LDecoder* const dec, VP8Io* const io);
 // this function. Returns false in case of error, with updated dec->status_.
 WEBP_NODISCARD int VP8LDecodeImage(VP8LDecoder* const dec);
 
-// Resets the decoder in its initial state, reclaiming memory.
-// Preserves the dec->status_ value.
-void VP8LClear(VP8LDecoder* const dec);
-
 // Clears and deallocate a lossless decoder instance.
 void VP8LDelete(VP8LDecoder* const dec);