1 files changed, 5 insertions, 0 deletions
diff --git a/src/map.c b/src/map.c
index 3fd02ad..edfb38a 100644
--- a/src/map.c
+++ b/src/map.c
@@ -721,6 +721,11 @@ map_data_unset_map(struct plugin_state *state,
 			}
 		}
 	}
+	/* And if we're down to no domains, free the domain list, too. */
+	if (map_data.n_domains == 0) {
+		free(map_data.domains);
+		map_data.domains = NULL;
+	}
 }
 
 /* Add a map structure, adding a domain for it if necessary. */