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 -r1.18.2.2 -r1.18.2.3
--- openacs-4/packages/acs-content-repository/tcl/image-procs.tcl	3 Jul 2020 07:27:29 -0000	1.18.2.2
+++ openacs-4/packages/acs-content-repository/tcl/image-procs.tcl	28 Oct 2020 15:39:19 -0000	1.18.2.3
@@ -325,7 +325,7 @@
 
     @param filename Filename of image file
 } {
-    if {[info commands ns_imgmime] ne ""} {
+    if {[namespace which ns_imgmime] ne ""} {
         set mime_type [ns_imgmime $filename]
         if {$mime_type ne "image/unknown"} {
             return $mime_type