diff --git a/NEWS.md b/NEWS.md
index f325bec637..5b65a25614 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -268,6 +268,7 @@
   aesthetics (@teunbrand, #2800).
 * Stricter check on `register_theme_elements(element_tree)` (@teunbrand, #6162)
 * Added `weight` aesthetic for `stat_ellipse()` (@teunbrand, #5272)
+* Fixed a bug where the `guide_custom(order)` wasn't working (@teunbrand, #6195)
 
 # ggplot2 3.5.1
 
diff --git a/R/guides-.R b/R/guides-.R
index 0e7ca26882..63a17cc430 100644
--- a/R/guides-.R
+++ b/R/guides-.R
@@ -306,8 +306,9 @@ Guides <- ggproto(
       return(no_guides)
     }
 
-    guides$guides <- c(guides$guides, custom$guides)
-    guides$params <- c(guides$params, custom$params)
+    ord <- order(c(names(guides$guides), names(custom$guides)))
+    guides$guides <- c(guides$guides, custom$guides)[ord]
+    guides$params <- c(guides$params, custom$params)[ord]
 
     guides
   },