Index: wrlib/nxpm.c
===================================================================
--- wrlib/nxpm.c
+++ wrlib/nxpm.c	2009-05-19 11:53:54.000000000 +0200
@@ -644,9 +644,9 @@
             if (!a || *a>127) {
                 tmpc = lookfor(colormap, (unsigned)*r<<16|(unsigned)*g<<8|(unsigned)*b);
 
-                fprintf(file, index2str(buf, tmpc->index, charsPerPixel));
+                fputs(index2str(buf, tmpc->index, charsPerPixel), file);
             } else {
-                fprintf(file, transp);
+                fputs(transp, file);
             }
 
             if (a) {