diff --git a/capa/main.py b/capa/main.py
index 00d9bc0f..64cb4be0 100644
--- a/capa/main.py
+++ b/capa/main.py
@@ -811,7 +811,7 @@ def compute_layout(rules, extractor, capabilities):
                 # this object is open to extension in the future,
                 # such as with the function name, etc.
             }
-            for f, bbs in bbs_by_function.items()
+            for f, bbs in bbs_by_function.items() if len([bb for bb in bbs if bb in matched_bbs]) > 0
         }
     }