diff --git a/mod/book/styles.css b/mod/book/styles.css
index aa570b5dd7b..2d3982ecb95 100644
--- a/mod/book/styles.css
+++ b/mod/book/styles.css
@@ -82,6 +82,11 @@
     border-radius: 0 200px 200px 0;
 }
 
+.path-mod-book.dir-rtl .btn-previous .icon,
+.path-mod-book.dir-rtl .btn-next .icon {
+    transform: scale(-1, -1); /* Flip the icons in RTL languages */
+}
+
 .path-mod-book .btn-previous .icon,
 .path-mod-book .btn-next .icon {
     font-size: 24px;