diff --git a/base/Base.jl b/base/Base.jl
index 1ca3c16deb24b..26ce2780527aa 100644
--- a/base/Base.jl
+++ b/base/Base.jl
@@ -461,10 +461,6 @@ end
 
 if is_primary_base_module
 function __init__()
-    # try to ensuremake sure OpenBLAS does not set CPU affinity (#1070, #9639)
-    if !haskey(ENV, "OPENBLAS_MAIN_FREE")
-        ENV["OPENBLAS_MAIN_FREE"] = "1"
-    end
     # for the few uses of Libc.rand in Base:
     Libc.srand()
     # Base library init
diff --git a/stdlib/OpenBLAS_jll/src/OpenBLAS_jll.jl b/stdlib/OpenBLAS_jll/src/OpenBLAS_jll.jl
index c69f3a262b298..f656621d957d6 100644
--- a/stdlib/OpenBLAS_jll/src/OpenBLAS_jll.jl
+++ b/stdlib/OpenBLAS_jll/src/OpenBLAS_jll.jl
@@ -32,6 +32,11 @@ else
 end
 
 function __init__()
+    # make sure OpenBLAS does not set CPU affinity (#1070, #9639)
+    if !haskey(ENV, "OPENBLAS_MAIN_FREE")
+        ENV["OPENBLAS_MAIN_FREE"] = "1"
+    end
+
     global libopenblas_handle = dlopen(libopenblas)
     global libopenblas_path = dlpath(libopenblas_handle)
     global artifact_dir = dirname(Sys.BINDIR)