diff --git a/src/Characters/gf.jl b/src/Characters/gf.jl
index 05c2476..6d0cba2 100644
--- a/src/Characters/gf.jl
+++ b/src/Characters/gf.jl
@@ -27,7 +27,7 @@ characteristic(::GF{q}) where {q} = q
 Base.:(==)(n::GF{q}, m::GF{q}) where {q} = Int(n) == Int(m)
 # hash(GF) == 0x04fd9e474909f8bf
 function Base.hash(n::GF{q}, h::UInt) where {q}
-    return xor(0x04fd9e474909f8bf, hash(q, hash(Int(n), h)))
+    return xor(0x04fd9e474909f8bf % UInt, hash(q, hash(Int(n), h)))
 end
 
 Base.:+(n::GF{q}, m::GF{q}) where {q} = GF{q}(Int(n) + Int(m), false)
diff --git a/test/characters.jl b/test/characters.jl
index ddb1a3c..12e6790 100644
--- a/test/characters.jl
+++ b/test/characters.jl
@@ -54,5 +54,5 @@ end
     @test sprint(show, -2chars[1] + 3chars[2]) == "-2·χ₁ +3·χ₂"
 
     @test sprint(show, MIME"text/plain"(), chars[1]) ==
-          "Character over Cyclotomic{Rational{Int64}, SparseVector{Rational{Int64}, Int64}}\nχ₁"
+          "Character over Cyclotomic{Rational{$Int}, SparseVector{Rational{$Int}, $Int}}\nχ₁"
 end