diff --git a/guides/release-notes/v3.0.12.adoc b/guides/release-notes/v3.0.12.adoc
index a6adb05e..de214242 100644
--- a/guides/release-notes/v3.0.12.adoc
+++ b/guides/release-notes/v3.0.12.adoc
@@ -4,6 +4,8 @@ Release date:: 2023-11-01
 
 == BIS documentation
 
+* Fixed an error in the documentation of semantic datatypes. It previously stated that a Boolean is based on the primitive datatype String, this has been corrected to Boolean. This fix is purely editoriol.
+
 == Changes to syntax
 * Order transaction (T01)
 
diff --git a/guides/shared/datatypes/boolean.adoc b/guides/shared/datatypes/boolean.adoc
index 1d0a2e53..5aee81e4 100644
--- a/guides/shared/datatypes/boolean.adoc
+++ b/guides/shared/datatypes/boolean.adoc
@@ -14,6 +14,6 @@ Boolean indicators are used to specify the two allowed values, _true_ or _false_
 
 |Content
 |Mandatory
-|String
+|Boolean
 |true
 |===