diff --git a/SC2290.md b/SC2290.md
index 37881df..5c4f86f 100644
--- a/SC2290.md
+++ b/SC2290.md
@@ -20,7 +20,8 @@ Parameters to `export`, `declare`, `local`, `typeset` and `readonly` may not hav
     export var =value    # Invalid: space before =
     export var= value    # Invalid: space after =
     export var=value     # Valid
- 
+
+This is because each individual argument to these commands is interpreted as a string in the format `name=value`. By adding spaces, you are instead passing the three strings `var`, `=`, `value`, none of which follow this format.
 
 ### Exceptions: