diff --git a/RELEASE.md b/RELEASE.md
new file mode 100644
index 0000000000..e826757a8f
--- /dev/null
+++ b/RELEASE.md
@@ -0,0 +1,3 @@
+Release type: patch
+
+This release fixes a minor issue where the docstring for the relay util `to_base64` described the return type incorrectly.
diff --git a/strawberry/relay/utils.py b/strawberry/relay/utils.py
index 2232429b5c..25014c7c70 100644
--- a/strawberry/relay/utils.py
+++ b/strawberry/relay/utils.py
@@ -41,7 +41,7 @@ def to_base64(type_: Union[str, type, StrawberryObjectDefinition], node_id: Any)
             The node id itself
 
     Returns:
-        A tuple of (TypeName, NodeID).
+        A GlobalID, which is a string resulting from base64 encoding <TypeName>:<NodeID>.
 
     Raises:
         ValueError: