diff --git a/postfix/mysql.sls b/postfix/mysql.sls
index 923eb66..5a45fc9 100644
--- a/postfix/mysql.sls
+++ b/postfix/mysql.sls
@@ -3,3 +3,5 @@
 mysql:
   pkg.installed:
     - name: {{ postfix.mysql_pkg }}
+    - watch_in:
+      - service: postfix
diff --git a/postfix/pcre.sls b/postfix/pcre.sls
index 019c7db..1d104c0 100644
--- a/postfix/pcre.sls
+++ b/postfix/pcre.sls
@@ -3,3 +3,5 @@
 pcre:
   pkg.installed:
     - name: {{ postfix.pcre_pkg }}
+    - watch_in:
+      - service: postfix