diff --git a/pkgs/development/interpreters/tcl/builder.sh b/pkgs/development/interpreters/tcl/builder.sh
index 2f036ebd66e..c1abbf2fc91 100644
--- a/pkgs/development/interpreters/tcl/builder.sh
+++ b/pkgs/development/interpreters/tcl/builder.sh
@@ -6,4 +6,10 @@ preConfigure() {
 
 preConfigure=preConfigure
 
+postInstall() {
+	ln -s $out/bin/tclsh8.4 $out/bin/tclsh
+}
+
+postInstall=postInstall
+
 genericBuild