diff --git a/test/distributed_exec.jl b/test/distributed_exec.jl
index 50c24d6..2345a6d 100644
--- a/test/distributed_exec.jl
+++ b/test/distributed_exec.jl
@@ -1924,12 +1924,17 @@ let julia = `$(Base.julia_cmd()) --startup-file=no`; mktempdir() do tmp
     """
     cmd = setenv(`$(julia) -e $(failcode)`, env)
     @test success(cmd)
+
+    # Hideous hack to double escape path separators on Windows so that it gets
+    # interpolated into the string (and then Cmd) correctly.
+    escaped_pkg_project = Sys.iswindows() ? replace(pkg_project, "\\" => "\\\\") : pkg_project
+
     # Passing env or exeflags to addprocs(...) to override defaults
     envcode = """
     using DistributedNext
     project = mktempdir()
     env = Dict(
-        "JULIA_LOAD_PATH" => string(LOAD_PATH[1], $(repr(pathsep)), "@stdlib", $(repr(pathsep)), "$(pkg_project)"),
+        "JULIA_LOAD_PATH" => string(LOAD_PATH[1], $(repr(pathsep)), "@stdlib", $(repr(pathsep)), "$(escaped_pkg_project)"),
         "JULIA_DEPOT_PATH" => DEPOT_PATH[1],
         "TMPDIR" => ENV["TMPDIR"],
     )
@@ -1939,7 +1944,7 @@ let julia = `$(Base.julia_cmd()) --startup-file=no`; mktempdir() do tmp
     """ * funcscode * """
     for w in workers()
         @test remotecall_fetch(depot_path, w)          == [DEPOT_PATH[1]]
-        @test remotecall_fetch(load_path, w)           == [LOAD_PATH[1], "@stdlib", "$(pkg_project)"]
+        @test remotecall_fetch(load_path, w)           == [LOAD_PATH[1], "@stdlib", "$(escaped_pkg_project)"]
         @test remotecall_fetch(active_project, w)      == project
         @test remotecall_fetch(Base.active_project, w) == joinpath(project, "Project.toml")
     end