diff --git a/environment.mk b/environment.mk
index 8f89587..45e3cab 100644
--- a/environment.mk
+++ b/environment.mk
@@ -99,7 +99,7 @@ show: #> Show key variables
 	@echo "Key variables defined in ${self}:"
 	@echo
 	@echo "\tBase/root directory of the build system..... ${MAKO_DIR}"
-	@echo "\tUsef-defined configuration.................. ${site_env}"
+	@echo "\tUsef-defined configuration.................. ${SITE_ENV}"
 	@echo
 	# future location for templates
 	@echo "\tLocation of user content.................... ${CONTENT}"