diff --git a/README.md b/README.md
index 8afbe285c..a21b909dd 100644
--- a/README.md
+++ b/README.md
@@ -172,9 +172,8 @@ Checks all public/external methods in services and components for methods that a
 
 ### find upgradeable contracts storage locations
 
-
 ```bash
-grep -o -h -E '([A-Z_]+_LOCATION_V[0-9]+_[0-9]+\s*=\s*0x[A-Ha-h0-9]+)' -r contracts
+grep -o -h -E '([A-Z0-9_]+_LOCATION_V[0-9]+_[0-9]+\s*=\s*0x[A-Ha-h0-9]+)' -r contracts
 ```
 
 Prints addresses for each storage struct of each release of each upgradeable contract