diff --git a/base/show.jl b/base/show.jl
index 398d1ea4e3a3e..011451601e05e 100644
--- a/base/show.jl
+++ b/base/show.jl
@@ -1601,7 +1601,10 @@ function show_unquoted(io::IO, ex::Expr, indent::Int, prec::Int, quote_level::In
         # scalar multiplication (i.e. "100x")
         elseif (func === :* &&
             length(func_args) == 2 && isa(func_args[1], Union{Int, Int64, Float32, Float64}) &&
-            isa(func_args[2], Symbol) && !in(string(func_args[2]::Symbol)[1], ('e', 'E', 'f')))
+            isa(func_args[2], Symbol) &&
+            !in(string(func_args[2]::Symbol)[1], ('e', 'E', 'f', (func_args[1] == 0 && func_args[1] isa Integer ?
+                                                                  # don't juxtapose 0 with b, o, x
+                                                                  ('b', 'o', 'x') : ())...)))
             if func_prec <= prec
                 show_enclosed_list(io, '(', func_args, "", ')', indent, func_prec, quote_level)
             else
diff --git a/test/show.jl b/test/show.jl
index 0f5706906e69c..d48c180306f9c 100644
--- a/test/show.jl
+++ b/test/show.jl
@@ -235,7 +235,10 @@ for ex in [Expr(:call, :f, Expr(:(=), :x, 1)),
            Expr(:call, :+, :n, Expr(:kw, :x, 1)),
            :((a=1,; $(Expr(:(=), :x, 2)))),
            :(($(Expr(:(=), :a, 1)),; x = 2)),
-           Expr(:tuple, Expr(:parameters))]
+           Expr(:tuple, Expr(:parameters)),
+           Expr(:call, :*, 0, :x01),
+           Expr(:call, :*, 0, :b01),
+           Expr(:call, :*, 0, :o01)]
     @test eval(Meta.parse(repr(ex))) == ex
 end