diff --git a/makefiles/Makefile.linux b/makefiles/Makefile.linux
index 17614ed..ccdb1ca 100755
--- a/makefiles/Makefile.linux
+++ b/makefiles/Makefile.linux
@@ -61,7 +61,7 @@ sysconfigflags = -DMOTIF1_2 -DLINUX
 #### For Motorola SVR4:
 # syslibs = -lnsl -lsocket -lgen
 
-syslibs = -lc
+syslibs = -lc -lpng12
 
 #### X include file locations -- if your platform puts the X include
 #### files in a strange place, set this variable appropriately.  Else
@@ -206,7 +206,7 @@ krblibs   = $(krb4libs) $(krb5libs)
 #### . If you want to define the default Mosaic documentation directory
 ####   (should be a URL), set -DDOCS_DIRECTORY_DEFAULT=\\\"url\\\"
 #### . Other things you can define are spelled out in src/mosaic.h.
-customflags =
+customflags = -lpng12
 
 
 
diff --git a/src/readPNG.h b/src/readPNG.h
index b65dbb5..ad1d9c9 100644
--- a/src/readPNG.h
+++ b/src/readPNG.h
@@ -54,7 +54,7 @@
 
 /* Author: DXP */
 
-#include "png.h"
+#include "libpng12/png.h"
 
 unsigned char *
 ReadPNG(FILE *infile,int *width, int *height, XColor *colrs);