diff --git a/general/prog/swig.xml b/general/prog/swig.xml
index 356fa9cd14..74d0d85024 100644
--- a/general/prog/swig.xml
+++ b/general/prog/swig.xml
@@ -121,7 +121,7 @@
 make</userinput></screen>
 
     <para>
-      To test the results, issue: <command>PY3=1 make -k check TCL_INCLUDE=</command>.
+      To test the results, issue: <command>PY3=1 make TCL_INCLUDE= -k check</command>.
       The unsetting of the variable <envar>TCL_INCLUDE</envar> is
       necessary since it is not correctly set by
       <emphasis>configure</emphasis>. The tests are only executed for the