diff --git a/manifests/api.pp b/manifests/api.pp
index c2087a68..bcf05aee 100644
--- a/manifests/api.pp
+++ b/manifests/api.pp
@@ -73,6 +73,10 @@ class heat::api (
   include heat::params
   include heat::policy
 
+  validate_legacy(Boolean, 'validate_bool', $manage_service)
+  validate_legacy(Boolean, 'validate_bool', $enabled)
+  validate_legacy(Boolean, 'validate_bool', $use_ssl)
+
   if $use_ssl {
     if is_service_default($cert_file) {
       fail('The cert_file parameter is required when use_ssl is set to true')
diff --git a/manifests/api_cfn.pp b/manifests/api_cfn.pp
index 682b8e88..bd5e018a 100644
--- a/manifests/api_cfn.pp
+++ b/manifests/api_cfn.pp
@@ -76,6 +76,10 @@ class heat::api_cfn (
   include heat::params
   include heat::policy
 
+  validate_legacy(Boolean, 'validate_bool', $manage_service)
+  validate_legacy(Boolean, 'validate_bool', $enabled)
+  validate_legacy(Boolean, 'validate_bool', $use_ssl)
+
   if $use_ssl {
     if is_service_default($cert_file) {
       fail('The cert_file parameter is required when use_ssl is set to true')
diff --git a/manifests/db.pp b/manifests/db.pp
index 376dd5f8..3c109570 100644
--- a/manifests/db.pp
+++ b/manifests/db.pp
@@ -61,6 +61,7 @@ class heat::db (
 ) {
 
   include heat::deps
+  validate_legacy(Boolean, 'validate_bool', $sync_db)
 
   oslo::db { 'heat_config':
     connection              => $database_connection,
diff --git a/manifests/engine.pp b/manifests/engine.pp
index 36c960fe..b14ab9e5 100644
--- a/manifests/engine.pp
+++ b/manifests/engine.pp
@@ -218,6 +218,9 @@ class heat::engine (
 
   include heat::deps
 
+  validate_legacy(Boolean, 'validate_bool', $manage_service)
+  validate_legacy(Boolean, 'validate_bool', $enabled)
+
   # Validate Heat Engine AES key
   # must be either 16, 24, or 32 bytes long
   # https://bugs.launchpad.net/heat/+bug/1415887