diff --git a/README.md b/README.md
index 951829e..a4df461 100644
--- a/README.md
+++ b/README.md
@@ -43,7 +43,6 @@ import (
 	"github.com/Kagami/go-avif"
 )
 
-// This example shows the basic usage of the package.
 func main() {
 	if len(os.Args) != 3 {
 		log.Fatalf("Usage: %s src.jpg dst.avif", os.Args[0])
@@ -63,7 +62,7 @@ func main() {
 
 	img, _, err := image.Decode(src)
 	if err != nil {
-		log.Fatalf("Can't decode source image: %v", err)
+		log.Fatalf("Can't decode source file: %v", err)
 	}
 
 	err = avif.Encode(dst, img, nil)
diff --git a/example_test.go b/example_test.go
index 8f97738..d788dc0 100644
--- a/example_test.go
+++ b/example_test.go
@@ -29,7 +29,7 @@ func Example_basic() {
 
 	img, _, err := image.Decode(src)
 	if err != nil {
-		log.Fatalf("Can't decode source image: %v", err)
+		log.Fatalf("Can't decode source file: %v", err)
 	}
 
 	err = avif.Encode(dst, img, nil)