diff --git a/libtiff/tif_dirinfo.c b/libtiff/tif_dirinfo.c
index 99b0a3ea..0354a93b 100644
--- a/libtiff/tif_dirinfo.c
+++ b/libtiff/tif_dirinfo.c
@@ -1236,10 +1236,6 @@ _TIFFCheckFieldIsValidForCodec(TIFF *tif, ttag_t tag)
 		if (tag == TIFFTAG_LERC_PARAMETERS)
 		    return 1;
 		break;
-		  case COMPRESSION_WEBP:
-		if (tag == TIFFTAG_PREDICTOR)
-				return 1;
-		break;
 	}
 	return 0;
 }
diff --git a/tools/tiffcp.c b/tools/tiffcp.c
index ad551ef2..21ce4b2f 100644
--- a/tools/tiffcp.c
+++ b/tools/tiffcp.c
@@ -741,11 +741,12 @@ tiffcp(TIFF* in, TIFF* out)
 		case COMPRESSION_DEFLATE:
                 case COMPRESSION_LZMA:
                 case COMPRESSION_ZSTD:
-								case COMPRESSION_WEBP:
 			if (predictor != (uint16)-1)
 				TIFFSetField(out, TIFFTAG_PREDICTOR, predictor);
 			else
 				CopyField(TIFFTAG_PREDICTOR, predictor);
+			/*fallthrough*/
+		case COMPRESSION_WEBP:
 			if (preset != -1) {
                                 if (compression == COMPRESSION_ADOBE_DEFLATE
                                          || compression == COMPRESSION_DEFLATE)