diff --git a/evcouplings/compare/protocol.py b/evcouplings/compare/protocol.py
index d7a4c366..209af54e 100644
--- a/evcouplings/compare/protocol.py
+++ b/evcouplings/compare/protocol.py
@@ -302,7 +302,7 @@ def plot_complex_cm(ecs_i, ecs_j, ecs_inter,
             # Currently, we require at least one of the monomer 
             # to have either ECs or distances in order to make a plot
             if ((ecs_i is None or ecs_i.empty) and d_intra_i is None and d_multimer_i is None) \
-                    or ((ecs_j is None or ecs_j.empty) and d_intra_j is None and d_multimer_i is None):
+                    or ((ecs_j is None or ecs_j.empty) and d_intra_j is None and d_multimer_j is None):
                 return False
 
             fig = plt.figure(figsize=(8, 8))