diff --git a/stdlib/REPL/src/REPL.jl b/stdlib/REPL/src/REPL.jl
index 9a9114aed9e3d..9e67ad9c2d8ab 100644
--- a/stdlib/REPL/src/REPL.jl
+++ b/stdlib/REPL/src/REPL.jl
@@ -197,7 +197,7 @@ function modules_to_be_loaded(ast::Expr, mods::Vector{Symbol} = Symbol[])
         arg isa Expr && modules_to_be_loaded(arg, mods)
     end
     filter!(mod -> !in(String(mod), ["Base", "Main", "Core"]), mods) # Exclude special non-package modules
-    return mods
+    return unique(mods)
 end
 
 """
diff --git a/stdlib/REPL/test/repl.jl b/stdlib/REPL/test/repl.jl
index 6724eb5e13ac3..3fbf6d8825bba 100644
--- a/stdlib/REPL/test/repl.jl
+++ b/stdlib/REPL/test/repl.jl
@@ -1332,6 +1332,8 @@ end
         @test mods == [:Foo, :Bar]
         mods = REPL.modules_to_be_loaded(Base.parse_input_line("import Foo, Bar"))
         @test mods == [:Foo, :Bar]
+        mods = REPL.modules_to_be_loaded(Base.parse_input_line("using Foo.bar, Foo.baz"))
+        @test mods == [:Foo]
 
         mods = REPL.modules_to_be_loaded(Base.parse_input_line("if false using Foo end"))
         @test mods == [:Foo]