diff --git a/3rdparty/ext_png/CMakeLists.txt b/3rdparty/ext_png/CMakeLists.txt
index b5ac62d0f6..3af51c3677 100755
--- a/3rdparty/ext_png/CMakeLists.txt
+++ b/3rdparty/ext_png/CMakeLists.txt
@@ -1,12 +1,12 @@
 SET(PREFIX_ext_png "${EXTPREFIX}" )
 ExternalProject_Add( ext_png
 	DOWNLOAD_DIR ${EXTERNALS_DOWNLOAD_DIR}
 	URL http://files.kde.org/krita/build/dependencies/libpng-1.6.23.tar.gz
 	URL_MD5 3a8fb380b0fb39cb69efe47901917e38
 
 	INSTALL_DIR ${PREFIX_ext_png}
-	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${PREFIX_ext_png} -DCMAKE_BUILD_TYPE=${GLOBAL_BUILD_TYPE} ${GLOBAL_PROFILE}
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${PREFIX_ext_png} -DCMAKE_BUILD_TYPE=${GLOBAL_BUILD_TYPE} ${GLOBAL_PROFILE} -DPNG_TESTS=OFF
         
 	UPDATE_COMMAND ""
 	DEPENDS ext_zlib
 )