diff --git a/INSTALLATION.md b/INSTALLATION.md
index 7be29da0..32ba7459 100644
--- a/INSTALLATION.md
+++ b/INSTALLATION.md
@@ -1224,7 +1224,7 @@ define( 'CONSTANT_NAME', value );
 | FICTIONEER_SHORTCODE_TRANSIENT_EXPIRATION | integer | Expiration duration for shortcode Transients in seconds. Default `300`.
 | FICTIONEER_STORY_COMMENT_COUNT_TIMEOUT | integer | Timeout between comment count refreshes for stories in _seconds_. Default `900`.
 | FICTIONEER_REQUESTS_PER_MINUTE | integer | Maximum requests per minute and action if the rate limit is enabled. Default `5`.
-| FICTIONEER_POST_NOT_IN_LIMIT | integer | Maximum allowed IDs in the 'post__not_in' query argument. Default `100`.
+| FICTIONEER_QUERY_ID_ARRAY_LIMIT | integer | Maximum allowed IDs in 'post__{not}_in' query arguments. Default `100`.
 | FICTIONEER_OLD_POST_THRESHOLD | integer | Age of published post that is considered "old" in seconds. Default `30`.
 | FICTIONEER_CACHE_PURGE_ASSIST | boolean | Whether to call the cache purge assist function on post updates. Default `true`.
 | FICTIONEER_RELATIONSHIP_PURGE_ASSIST | boolean | Whether to purge related post caches. Default `true`.
diff --git a/functions.php b/functions.php
index d42ffbd2..d6636a98 100644
--- a/functions.php
+++ b/functions.php
@@ -259,11 +259,11 @@ if ( ! defined( 'FICTIONEER_REQUESTS_PER_MINUTE' ) ) {
   define( 'FICTIONEER_REQUESTS_PER_MINUTE', 5 );
 }
 
-// Integer: Maximum of 'post__not_in' query argument to prevent performance degradation.
-// If exceeded, the whole argument will be ignored in certain queries, which account for
-// this case in the view.
-if ( ! defined( 'FICTIONEER_POST_NOT_IN_LIMIT' ) ) {
-  define( 'FICTIONEER_POST_NOT_IN_LIMIT', 100 );
+// Integer: Maximum number of IDs in 'post__in' and 'post__not_in' query arguments
+// to prevent performance degradation. If exceeded, the whole argument will be
+// ignored in certain queries, which account for.
+if ( ! defined( 'FICTIONEER_QUERY_ID_ARRAY_LIMIT' ) ) {
+  define( 'FICTIONEER_QUERY_ID_ARRAY_LIMIT', 100 );
 }
 
 // Integer: After how many seconds after saving is a post considered "old"
diff --git a/includes/functions/_query_helpers.php b/includes/functions/_query_helpers.php
index 68b1b335..cd5b2a8d 100644
--- a/includes/functions/_query_helpers.php
+++ b/includes/functions/_query_helpers.php
@@ -78,7 +78,7 @@ if ( ! function_exists( 'fictioneer_get_card_list' ) ) {
     if ( ! ( isset( $the_query_args['post__in'] ) && empty( $the_query_args['post__in'] ) ) ) {
 
       // Look for IDs to exclude if story or chapter...
-      if ( in_array( $post_type, ['fcn_story', 'fcn_chapter'] ) && FICTIONEER_POST_NOT_IN_LIMIT > 0 ) {
+      if ( in_array( $post_type, ['fcn_story', 'fcn_chapter'] ) && FICTIONEER_QUERY_ID_ARRAY_LIMIT > 0 ) {
         // Get complete set for filtering (required due to pagination)
         $all_query = new WP_Query(
           array_merge( $the_query_args, array( 'posts_per_page' => -1, 'no_found_rows' => true ) )
@@ -105,7 +105,7 @@ if ( ! function_exists( 'fictioneer_get_card_list' ) ) {
         }
       }
 
-      if ( ! empty( $excluded ) && count( $excluded ) <= FICTIONEER_POST_NOT_IN_LIMIT ) {
+      if ( ! empty( $excluded ) && count( $excluded ) <= FICTIONEER_QUERY_ID_ARRAY_LIMIT ) {
         $the_query_args['post__not_in'] = array_merge( $excluded, ( $the_query_args['post__not_in'] ?? [] ) );
       }
 
diff --git a/includes/functions/_utility.php b/includes/functions/_utility.php
index cedc275b..a3af6988 100644
--- a/includes/functions/_utility.php
+++ b/includes/functions/_utility.php
@@ -186,7 +186,7 @@ function fictioneer_get_story_chapter_posts( $story_id ) {
   }
 
   // Few chapters?
-  if ( count( $chapter_ids ) < 50 ) {
+  if ( count( $chapter_ids ) <= FICTIONEER_QUERY_ID_ARRAY_LIMIT ) {
     // Query with post__in, which should be faster than meta query
     // as long as the ID array is not too large.
     $chapter_query = new WP_Query(