Index: render_pstricks.c
===================================================================
--- render_pstricks.c	(revision 4138)
+++ render_pstricks.c	(working copy)
@@ -258,7 +258,7 @@
     gchar d_buf[DTOSTR_BUF_SIZE];
 
 
-    fprintf(renderer->file, "\\psset{linewidth=%scm}\n",
+    fprintf(renderer->file, "\\psset{linewidth=%s}\n",
 	    pstricks_dtostr(d_buf, (gdouble) linewidth) );
 }