diff --git a/changes-entries/pr66672.txt b/changes-entries/pr66672.txt
new file mode 100644
index 00000000000..f36897bb0d2
--- /dev/null
+++ b/changes-entries/pr66672.txt
@@ -0,0 +1,3 @@
+  *) mod_rewrite: Fix a recent regression where a rule with both a trailing
+     '?' and the [QSA] flag did not have the query appended.  PR66672
+     Frank Meier <frank.meier ergon.ch>
diff --git a/modules/mappers/mod_rewrite.c b/modules/mappers/mod_rewrite.c
index 827239d9dbf..7fb4e92c0de 100644
--- a/modules/mappers/mod_rewrite.c
+++ b/modules/mappers/mod_rewrite.c
@@ -3909,9 +3909,12 @@ static const char *cmd_rewriterule(cmd_parms *cmd, void *in_dconf,
     }
 
     if (*(a2_end-1) == '?') {
-        /* a literal ? at the end of the unsubstituted rewrite rule */
-        newrule->flags |= RULEFLAG_QSNONE;
         *(a2_end-1) = '\0'; /* trailing ? has done its job */
+        /* a literal ? at the end of the unsubstituted rewrite rule */
+        if (!(newrule->flags & RULEFLAG_QSAPPEND))
+        {
+            newrule->flags |= RULEFLAG_QSNONE;
+        }
     }
     else if (newrule->flags & RULEFLAG_QSDISCARD) {
         if (NULL == ap_strchr(newrule->output, '?')) {