diff --git a/Project.toml b/Project.toml
index 3242037..459f984 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,6 +1,6 @@
 name = "GraphDynamicalSystems"
 uuid = "13529e2e-ed53-56b1-bd6f-420b01fca819"
-version = "0.0.7"
+version = "0.0.8"
 authors = ["Reuben Gardos Reid <5456207+ReubenJ@users.noreply.github.com>"]
 
 [deps]
diff --git a/src/qualitative_networks.jl b/src/qualitative_networks.jl
index 9530c39..c09cc11 100644
--- a/src/qualitative_networks.jl
+++ b/src/qualitative_networks.jl
@@ -96,7 +96,7 @@ function QualitativeNetwork{GraphType}(
     graph = GraphType()
     Graphs.add_vertices!(graph, length(entity_keys))
     Graphs.add_edge!.((graph,), Graphs.Edge.(edges))
-    vertices_description = Pair{Symbol,QNEntity}[
+    vertices_description = Pair{E,QNEntity}[
         (e => QNEntity(fn, 0, d)) for
         (e, fn, d) in zip(entity_keys, entity_fns, entity_domains)
     ]