Index: openacs-4/packages/acs-content-repository/tcl/image-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-content-repository/tcl/image-procs.tcl,v
diff -u -r1.18 -r1.18.2.1
--- openacs-4/packages/acs-content-repository/tcl/image-procs.tcl	16 Jan 2019 08:42:41 -0000	1.18
+++ openacs-4/packages/acs-content-repository/tcl/image-procs.tcl	17 Jun 2019 10:15:36 -0000	1.18.2.1
@@ -383,7 +383,7 @@
         set revision_id [content::item::get_best_revision -item_id $item_id]
     }
     set original_filename [content::revision::get_cr_file_path -revision_id $revision_id]
-    set tmp_filename [ns_mktemp "/tmp/XXXXXX"]
+    set tmp_filename [ns_mktemp "[ad_tmpdir]/XXXXXX"]
     array set sizes [image::get_convert_to_sizes]
 
     if {[catch {exec [image::convert_binary] -resize $sizes($size_name) $original_filename $tmp_filename} errmsg]} {