diff --git a/src/Gnuplot.jl b/src/Gnuplot.jl
index 18a8057..7c82e50 100644
--- a/src/Gnuplot.jl
+++ b/src/Gnuplot.jl
@@ -1853,9 +1853,9 @@ function hist(v::Vector{T}; range=[NaN,NaN], bs=NaN, nbins=0, pad=true) where T
     end
     @assert sum(hh.weights) == length(i)
     x = collect(hh.edges[1])
+    binsize = x[2] - x[1]
     x = (x[1:end-1] .+ x[2:end]) ./ 2
     h = hh.weights
-    binsize = x[2] - x[1]
     if pad
         x = [x[1]-binsize, x..., x[end]+binsize]
         h = [0, h..., 0]
diff --git a/test/runtests.jl b/test/runtests.jl
index 76a91ed..53fe0fe 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -286,4 +286,7 @@ Gnuplot.quit(:default)
 Gnuplot.options.dry = true
 @gp hist(randn(1000))
 
+# Various hist() corner cases
+@gp hist([1,2,3], bs=2)
+
 Gnuplot.quitall()