diff --git a/docs/src/guide/units.md b/docs/src/guide/units.md
index 784984e..06f1201 100644
--- a/docs/src/guide/units.md
+++ b/docs/src/guide/units.md
@@ -101,5 +101,5 @@ DimensionfulAngles.gradᵃ
 
 ```@autodocs
 Modules = [DimensionfulAngles]
-Filter = x->_filter_prefixed("as", x)
+Filter = x->_filter_prefixed("asₐ", x)
 ```