diff --git a/kernel/kls_png/ksquirrel-libs-png/Makefile.am b/kernel/kls_png/ksquirrel-libs-png/Makefile.am
index 9f88f20..084a02e 100644
--- a/kernel/kls_png/ksquirrel-libs-png/Makefile.am
+++ b/kernel/kls_png/ksquirrel-libs-png/Makefile.am
@@ -2,7 +2,7 @@ INCLUDES = -I.
 
 lib_LTLIBRARIES = libksquirrel-libs-png.la
 
-libksquirrel_libs_png_la_SOURCES = png.c pngconf.h pngerror.c pnggccrd.c pngget.c png.h pngmem.c pngpread.c pngread.c pngrio.c pngrtran.c \
+libksquirrel_libs_png_la_SOURCES = png.cpp pngconf.h pngerror.c pnggccrd.c pngget.c png.h pngmem.c pngpread.c pngread.c pngrio.c pngrtran.c \
 pngrutil.c pngset.c pngtrans.c pngvcrd.c pngwio.c pngwrite.c pngwtran.c pngwutil.c pnghack.h
 
 libksquirrel_libs_png_la_LIBADD = -lz -lm
diff --git a/kernel/kls_png/ksquirrel-libs-png/png.c b/kernel/kls_png/ksquirrel-libs-png/png.cpp
similarity index 100%
rename from kernel/kls_png/ksquirrel-libs-png/png.c
rename to kernel/kls_png/ksquirrel-libs-png/png.cpp