diff --git a/add_bud_fluorescence.py b/add_bud_fluorescence.py
index 929c5dfe8443f5d4413463fb892952a791429446..5c0a4a948ec1b06fa27f3f9b9de4df90cc71b9f6 100644
--- a/add_bud_fluorescence.py
+++ b/add_bud_fluorescence.py
@@ -41,6 +41,6 @@ def add_bud_fluorescence(h5dirpath, signals=["/extraction/GFP/max/median"]):
                 del f["/postprocessing"]
             if "modifiers" in f:
                 del f["/modifiers"]
-            # rerun postprocessor
+            # re-run postprocessor
             pp = PostProcessor(filepath, new_params)
             pp.run()
diff --git a/dataloader.py b/dataloader.py
index eb09578604e345ffe490b74907bbc4ebc1442241..edbb7f8e89c24ca49707ff325493bc9dc870ba53 100644
--- a/dataloader.py
+++ b/dataloader.py
@@ -227,6 +227,7 @@ class dataloader:
                 self.g2a_dict = {**self.g2a_dict, **extra_g2a_dict}
             elif extra_g2a_dict:
                 self.g2a_dict = extra_g2a_dict
+            self.a2g_dict = {v: k for (k, v) in self.g2a_dict.items()}
             # create instance of grouper
             grouper = self.get_grouper(dataname)
             print("\n---\n" + dataname + "\n---")