diff --git a/configure.ac b/configure.ac
index ac0b86e..a84637d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3042,7 +3042,6 @@ if test "${HAVE_X11}" = "yes"; then
     fi
     with_xpm=no
     with_jpeg=no
-    with_png=no
     with_gif=no
     with_tiff=no
 
diff --git a/src/image.c b/src/image.c
index 77e5523..ad31719 100644
--- a/src/image.c
+++ b/src/image.c
@@ -5459,7 +5459,7 @@ pbm_load (struct frame *f, struct image *img)
 				 PNG
  ***********************************************************************/
 
-#if defined (HAVE_XPM) || defined (HAVE_NS) || defined (USE_CAIRO)
+#if defined (HAVE_PNG) || defined (HAVE_NS) || defined (USE_CAIRO)
 
 /* Function prototypes.  */