diff --git a/definitions/install.yaml b/definitions/install.yaml
index 1e44e139f7..a0829c6f16 100644
--- a/definitions/install.yaml
+++ b/definitions/install.yaml
@@ -54,8 +54,10 @@ spec:
                               type: string
                           name:
                             type: string
-                          namespace:
-                            type: string
+                          namespaces:
+                            type: array
+                            items:
+                              type: string
                           selector:
                             properties:
                               matchLabels:
diff --git a/definitions/install_debug.yaml b/definitions/install_debug.yaml
index 0d50728fdd..3111562f22 100644
--- a/definitions/install_debug.yaml
+++ b/definitions/install_debug.yaml
@@ -54,8 +54,10 @@ spec:
                               type: string
                           name:
                             type: string
-                          namespace:
-                            type: string
+                          namespaces:
+                            type: array
+                            items:
+                              type: string
                           selector:
                             properties:
                               matchLabels: