3 files changed, 3 insertions, 0 deletions
diff --git a/README b/README
index 135234e2d..dc95a3289 100644
--- a/README
+++ b/README
@@ -17,6 +17,7 @@ THE MANA PLUS CLIENT
   - SDL, SDL_image, SDL_mixer, SDL_ttf, SDL_net (Media framework), SDL_gfx
   - libxml2 or pugixml (XML parsing and writing)
   - libcurl (HTTP downloads)
+  - libpng (save screenshots)
   - zlib (Archives)
   - PhysFS (not used by default)
 
diff --git a/README.md b/README.md
index f3ec0a99c..a5ec32ee6 100644
--- a/README.md
+++ b/README.md
@@ -22,6 +22,7 @@ Doxygen: [![doxygen](https://img.shields.io/badge/Docs-Doxygen/manaplus-blue.svg
  - [SDL](http://libsdl.org/), SDL_image, SDL_mixer, SDL_ttf, SDL_net (Media framework), SDL_gfx
  - [libxml2](http://xmlsoft.org/) or [pugixml](http://pugixml.org/) (XML parsing and writing)
  - [libcurl](http://curl.haxx.se/) (HTTP downloads)
+ - [libpng](http://www.libpng.org/) (save screenshots)
  - [zlib](http://zlib.net/) (Archives)
  - [PhysFS](https://icculus.org/physfs/) (not used by default)
 
diff --git a/README.txt b/README.txt
index 56f821a1f..f992182f0 100644
--- a/README.txt
+++ b/README.txt
@@ -17,6 +17,7 @@ THE MANA PLUS CLIENT
   - SDL, SDL_image, SDL_mixer, SDL_ttf, SDL_net (Media framework), SDL_gfx
   - libxml2 or pugixml (XML parsing and writing)
   - libcurl (HTTP downloads)
+  - libpng (save screenshots)
   - zlib (Archives)
   - PhysFS (not used by default)