diff --git a/scripts/init-replication.sh b/scripts/init-replication.sh
index 6c4dbc4..95aeb54 100755
--- a/scripts/init-replication.sh
+++ b/scripts/init-replication.sh
@@ -91,13 +91,30 @@ IFS="$OLD_IFS"
 
 # Configure syncrepl and mirrormode on the database
 log_info "Configuring syncrepl and mirrormode..."
+
+# Check if olcSyncRepl attribute already exists
+if ldapsearch -Y EXTERNAL -H "$LDAPI_SOCKET" -b "olcDatabase={1}mdb,cn=config" -s base "(olcSyncRepl=*)" olcSyncRepl 2>/dev/null | grep -q "olcSyncRepl:"; then
+    SYNCREPL_OP="replace"
+    log_info "Updating existing syncrepl configuration..."
+else
+    SYNCREPL_OP="add"
+    log_info "Adding new syncrepl configuration..."
+fi
+
+# Check if olcMirrorMode attribute already exists
+if ldapsearch -Y EXTERNAL -H "$LDAPI_SOCKET" -b "olcDatabase={1}mdb,cn=config" -s base "(olcMirrorMode=*)" olcMirrorMode 2>/dev/null | grep -q "olcMirrorMode:"; then
+    MIRRORMODE_OP="replace"
+else
+    MIRRORMODE_OP="add"
+fi
+
 cat > /tmp/repl-syncrepl.ldif << EOF
 dn: olcDatabase={1}mdb,cn=config
 changetype: modify
-replace: olcSyncRepl
+${SYNCREPL_OP}: olcSyncRepl
 ${SYNCREPL_CONFIG}
 -
-replace: olcMirrorMode
+${MIRRORMODE_OP}: olcMirrorMode
 olcMirrorMode: TRUE
 EOF