diff --git a/doc/doxygen/riot.doxyfile b/doc/doxygen/riot.doxyfile
index 7eaef2eef3..c52a973031 100644
--- a/doc/doxygen/riot.doxyfile
+++ b/doc/doxygen/riot.doxyfile
@@ -564,7 +564,7 @@ SORT_MEMBERS_CTORS_1ST = NO
 # appear in their defined order.
 # The default value is: NO.
 
-SORT_GROUP_NAMES       = NO
+SORT_GROUP_NAMES       = YES
 
 # If the SORT_BY_SCOPE_NAME tag is set to YES, the class list will be sorted by
 # fully-qualified names, including namespaces. If set to NO, the class list will