diff --git a/src/ising.jl b/src/ising.jl
index fcdb63e..7042138 100644
--- a/src/ising.jl
+++ b/src/ising.jl
@@ -20,7 +20,7 @@ function unique_nodes(ising_tuples)
 end
 
 """
-$(TYPEDSIGNATURES)
+    ising_graph(instance, sgn::Number = 1.0, rank_override::Dict{Int,Int} = Dict{Int,Int}())
 
 Create an Ising graph from interaction data.
 
diff --git a/src/spectrum.jl b/src/spectrum.jl
index 8efabfa..a0a1470 100644
--- a/src/spectrum.jl
+++ b/src/spectrum.jl
@@ -64,7 +64,7 @@ function matrix_to_integers(matrix::Vector{Vector{T}}) where {T}
 end
 
 """
-$(TYPEDSIGNATURES)
+    energy(σ::Vector, ig::IsingGraph)
 
 Calculates the energy of a state in an Ising graph.
 
diff --git a/test/ising.jl b/test/ising.jl
index 763e280..8dc3674 100644
--- a/test/ising.jl
+++ b/test/ising.jl
@@ -64,10 +64,14 @@ end
 @testset "Ising graph created with additional parameters" begin
     expected_biases = [-0.1, -0.5, 0.0]
     expected_couplings = Dict(Edge(1, 2) => 0.3, Edge(1, 3) => 2.0, Edge(2, 3) => -1.0)
+    expected_couplings = Dict(Edge(1, 2) => 0.3, Edge(1, 3) => 2.0, Edge(2, 3) => -1.0)
     expected_J_matrix = [
         [0 0.3 2.0]
         [0 0 -1.0]
         [0 0 0]
+        [0 0.3 2.0]
+        [0 0 -1.0]
+        [0 0 0]
     ]
 
     ig = ising_graph(
@@ -112,6 +116,7 @@ end
     @testset "Reading from Dict" begin
         instance_dict = Dict()
         ising = CSV.File(instance, types = [Int, Int, Float64], header = 0, comment = "#")
+        ising = CSV.File(instance, types = [Int, Int, Float64], header = 0, comment = "#")
 
         for (i, j, v) ∈ ising
             push!(instance_dict, (i, j) => v)