diff --git a/EnvironmentVariables.md b/EnvironmentVariables.md
index c433f8b..c6576c4 100644
--- a/EnvironmentVariables.md
+++ b/EnvironmentVariables.md
@@ -33,7 +33,10 @@ Environment controls begin with the keyword ```environment``` followed by an ind
The basic structure of an environment rule is as follows.
```
- ENVIRONMENT_RULE :=
( AUDIT_QUALIFIER QUALIFIER 'environment' VARIABLES ('='VALUES)? [ ':=' VALUE ] ',' |
'environment '{' ( AUDIT_QUALIFIER QUALIFIER VARIABLES ['=' VALUES] [ ':=' VALUE ] ',' )* '}' )
+ ENVIRONMENT_RULE := (
+ AUDIT_QUALIFIER QUALIFIER 'environment' VARIABLES ('='VALUES)? [ ':=' VALUE ] ',' |
+ 'environment '{' ( AUDIT_QUALIFIER QUALIFIER VARIABLES ['=' VALUES] [ ':=' VALUE ] ',' )* '}'
+ )
AUDIT_QUALIFIER := (audit|quiet|access)
QUALIFIER := (allow|deny|require|filter|delete|set)