diff --git a/test/runtests.jl b/test/runtests.jl
index 0a46b08..58202ae 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -24,7 +24,11 @@ mktempdir() do dir
 
         contents = [nothing, "foo", "bar", Dict{Any,Any}("baz"=>"qux")]
         b = length(contents)
-        states = [Dict([(string(k, base=b, pad=6), contents[rem(div(k,b^p),b)+1]) for k=0:(b^3)^2-1]) for p=0:5]
+        @static if VERSION >= v"0.7.0"
+            states = [Dict([(string(k, base=b, pad=6), contents[rem(div(k,b^p),b)+1]) for k=0:(b^3)^2-1]) for p=0:5]
+        else
+            states = [Dict([(base(b, k, 6), contents[rem(div(k,b^p),b)+1]) for k=0:(b^3)^2-1]) for p=0:5]
+        end
 
         git_setup(states[1:3]...)
         try Git.transact() do