diff --git a/modules/imgcodecs/src/grfmt_png.cpp b/modules/imgcodecs/src/grfmt_png.cpp
index c04fd2bf55..4ecf32cd4c 100644
--- a/modules/imgcodecs/src/grfmt_png.cpp
+++ b/modules/imgcodecs/src/grfmt_png.cpp
@@ -67,7 +67,7 @@
  *  https://github.com/apngasm/apngasm
 
 
- /* APNG Optimizer 1.4
+ * APNG Optimizer 1.4
  *
  * Makes APNG files smaller.
  *