diff --git a/VERSION b/VERSION
index a85871a9..1e7c7bfb 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-8.3.436
+8.3.437
diff --git a/tcltk/toolkit.tcl b/tcltk/toolkit.tcl
index 1025b696..72db64cb 100644
--- a/tcltk/toolkit.tcl
+++ b/tcltk/toolkit.tcl
@@ -509,7 +509,7 @@ proc magic::gencell {gencell_name {instname {}} args} {
 	    if {$cellname != ""} {
 		# Case:  Change existing instance, parameters in args (if any)
 		select cell $instname
-		set devparms [cellname list property $gencell_type parameters]
+		set devparms [cellname list property $cellname parameters]
 	        set parameters [magic::gencell_defaults $gencell_type $library $devparms]
 		if {[dict exists $parameters nocell]} {
 		    set arcount [array -list count]