diff --git a/builder/builder-manifest.c b/builder/builder-manifest.c
index c38dbc78..cf58d3cd 100644
--- a/builder/builder-manifest.c
+++ b/builder/builder-manifest.c
@@ -1357,6 +1357,8 @@ builder_manifest_checksum_for_platform (BuilderManifest *self,
                                         BuilderCache    *cache,
                                         BuilderContext  *context)
 {
+  GList *l;
+
   builder_cache_checksum_str (cache, BUILDER_MANIFEST_CHECKSUM_PLATFORM_VERSION);
   builder_cache_checksum_str (cache, self->id_platform);
   builder_cache_checksum_str (cache, self->runtime_commit);
@@ -1378,6 +1380,12 @@ builder_manifest_checksum_for_platform (BuilderManifest *self,
       else
         g_warning ("Can't load metadata-platform file %s: %s", self->metadata_platform, my_error->message);
     }
+
+  for (l = self->expanded_modules; l != NULL; l = l->next)
+    {
+      BuilderModule *m = l->data;
+      builder_module_checksum_for_platform (m, cache, context);
+    }
 }
 
 gboolean
diff --git a/builder/builder-module.c b/builder/builder-module.c
index 3c611410..19342214 100644
--- a/builder/builder-module.c
+++ b/builder/builder-module.c
@@ -1411,6 +1411,14 @@ builder_module_checksum_for_cleanup (BuilderModule  *self,
   builder_cache_checksum_strv (cache, self->cleanup);
 }
 
+void
+builder_module_checksum_for_platform (BuilderModule  *self,
+                                      BuilderCache   *cache,
+                                      BuilderContext *context)
+{
+  builder_cache_checksum_strv (cache, self->cleanup_platform);
+}
+
 void
 builder_module_set_json_path (BuilderModule *self,
                               const char *json_path)
diff --git a/builder/builder-module.h b/builder/builder-module.h
index 91090d56..d07c1017 100644
--- a/builder/builder-module.h
+++ b/builder/builder-module.h
@@ -73,6 +73,9 @@ void     builder_module_checksum (BuilderModule  *self,
 void     builder_module_checksum_for_cleanup (BuilderModule  *self,
                                               BuilderCache   *cache,
                                               BuilderContext *context);
+void     builder_module_checksum_for_platform (BuilderModule  *self,
+                                               BuilderCache   *cache,
+                                               BuilderContext *context);
 void     builder_module_cleanup_collect (BuilderModule  *self,
                                          gboolean        platform,
                                          BuilderContext *context,