diff --git a/infra/base-images/base-libfuzzer/README.md b/infra/base-images/base-libfuzzer/README.md
index 2366c17eb..d7c44b194 100644
--- a/infra/base-images/base-libfuzzer/README.md
+++ b/infra/base-images/base-libfuzzer/README.md
@@ -38,8 +38,8 @@ Build configuration is performed through following environment variables:
 
 | Env Variable     | Description
 | -------------    | --------
-| `SANITIZER ("address")` | Specifies sanitizer configuration to use. `address` or `undefined`.
-| `SANITIZER_FLAGS` | Specify compiler sanitizer flags directly. Overrides `SANITIZER`.
+| `$SANITIZER ("address")` | Specifies sanitizer configuration to use. `address` or `undefined`.
+| `$SANITIZER_FLAGS` | Specify compiler sanitizer flags directly. Overrides `$SANITIZER`.
 
 # Examples