diff --git a/src/3rdparty/libpng.pri b/src/3rdparty/libpng.pri
index f8516bd5db..a5fe32f867 100644
--- a/src/3rdparty/libpng.pri
+++ b/src/3rdparty/libpng.pri
@@ -1,4 +1,3 @@
-DEFINES *= QT_USE_BUNDLED_LIBPNG
 DEFINES += PNG_ARM_NEON_OPT=0
 INCLUDEPATH += $$PWD/libpng
 SOURCES += $$PWD/libpng/png.c \
diff --git a/src/gui/image/qpnghandler.cpp b/src/gui/image/qpnghandler.cpp
index 776a61d8fe..e9944e1750 100644
--- a/src/gui/image/qpnghandler.cpp
+++ b/src/gui/image/qpnghandler.cpp
@@ -43,13 +43,8 @@
 #include <qvariant.h>
 #include <qvector.h>
 
-#ifdef QT_USE_BUNDLED_LIBPNG
-#include <../../3rdparty/libpng/png.h>
-#include <../../3rdparty/libpng/pngconf.h>
-#else
 #include <png.h>
 #include <pngconf.h>
-#endif
 
 #if PNG_LIBPNG_VER >= 10400 && PNG_LIBPNG_VER <= 10502 \
         && defined(PNG_PEDANTIC_WARNINGS_SUPPORTED)