diff --git a/csl/chicago-fullnote-bibliography.csl b/csl/chicago-fullnote-bibliography.csl
index 8c62b92b1..1a68d94eb 100644
--- a/csl/chicago-fullnote-bibliography.csl
+++ b/csl/chicago-fullnote-bibliography.csl
@@ -171,12 +171,12 @@
       <choose>
 	<if position="ibid-with-locator">
 	  <group delimiter=", ">
-	    <text term="ibid" text-case="capitalize-first"/>
+	    <text term="ibid" text-case="capitalize-first" suffix="."/>
 	    <text variable="locator"/>
 	  </group>
 	</if>
 	<else-if position="ibid">
-	  <text term="ibid" text-case="capitalize-first"/>
+	  <text term="ibid" text-case="capitalize-first" suffix="."/>
 	</else-if>
 	<else-if position="subsequent">
 	  <group delimiter=", ">
diff --git a/csl/chicago-note.csl b/csl/chicago-note.csl
index c3ce17976..595708ebc 100644
--- a/csl/chicago-note.csl
+++ b/csl/chicago-note.csl
@@ -171,12 +171,12 @@
       <choose>
 	<if position="ibid-with-locator">
 	  <group delimiter=", ">
-	    <text term="ibid" text-case="capitalize-first"/>
+	    <text term="ibid" text-case="capitalize-first" suffix="."/>
 	    <text variable="locator"/>
 	  </group>
 	</if>
 	<else-if position="ibid">
-	  <text term="ibid" text-case="capitalize-first"/>
+	  <text term="ibid" text-case="capitalize-first" suffix="."/>
 	</else-if>
 	<else-if position="subsequent">
 	  <group delimiter=", ">