diff --git a/lib/TWiki/Contrib/CliRunnerContrib/build.pl b/lib/TWiki/Contrib/CliRunnerContrib/build.pl
index 7559e1e..2610199 100755
--- a/lib/TWiki/Contrib/CliRunnerContrib/build.pl
+++ b/lib/TWiki/Contrib/CliRunnerContrib/build.pl
@@ -8,7 +8,7 @@
 # details of how the build process works, and what files you
 # have to provide and where.
 #
-# Requires the environment variable TWIKI_LIBS (a colon-separated path
+# Requires the environment variable FOSWIKI_LIBS (a colon-separated path
 # list) to be set to point at the build system and any required dependencies.
 # Usage: ./build.pl [-n] [-v] [target]
 # where [target] is the optional build target (build, test,
@@ -19,7 +19,7 @@
 #
 
 # Standard preamble
-BEGIN { unshift @INC, split( /:/, $ENV{TWIKI_LIBS} ) }
+BEGIN { unshift @INC, split( /:/, $ENV{FOSWIKI_LIBS} ) }
 
 use TWiki::Contrib::Build;