diff --git a/compiler/vmops.nim b/compiler/vmops.nim
index ce449f6658..04356fc76e 100644
--- a/compiler/vmops.nim
+++ b/compiler/vmops.nim
@@ -317,6 +317,6 @@ proc registerAdditionalOps*(c: PCtx) =
     setResult(a, (fn.typ != nil and tfNoSideEffect in fn.typ.flags) or
                  (fn.kind == nkSym and fn.sym.kind == skFunc))
 
-  registerCallback c, "stdlib.effecttraits.hasClosureImpl", proc (a: VmArgs) =
+  registerCallback c, "stdlib.typetraits.hasClosureImpl", proc (a: VmArgs) =
     let fn = getNode(a, 0)
     setResult(a, fn.kind == nkClosure or (fn.typ != nil and fn.typ.callConv == ccClosure))
diff --git a/lib/pure/typetraits.nim b/lib/pure/typetraits.nim
index 6827e23b1a..2527dc26e8 100644
--- a/lib/pure/typetraits.nim
+++ b/lib/pure/typetraits.nim
@@ -263,3 +263,14 @@ since (1, 1):
 
     type T2 = T
     genericParamsImpl(T2)
+
+
+proc hasClosureImpl(n: NimNode): bool = discard "see compiler/vmops.nim"
+
+proc hasClosure*(fn: NimNode): bool {.since: (1, 5, 1).} =
+  ## Return true if the func/proc/etc `fn` has `closure`.
+  ## `fn` has to be a resolved symbol of kind `nnkSym`. This
+  ## implies that the macro that calls this proc should accept `typed`
+  ## arguments and not `untyped` arguments.
+  expectKind fn, nnkSym
+  result = hasClosureImpl(fn)
diff --git a/lib/std/effecttraits.nim b/lib/std/effecttraits.nim
index 04a24fae8f..3bed647e91 100644
--- a/lib/std/effecttraits.nim
+++ b/lib/std/effecttraits.nim
@@ -15,13 +15,11 @@
 ## via `defined(nimHasEffectTraitsModule)`.
 
 import std/macros
-import std/private/since
 
 proc getRaisesListImpl(n: NimNode): NimNode = discard "see compiler/vmops.nim"
 proc getTagsListImpl(n: NimNode): NimNode = discard "see compiler/vmops.nim"
 proc isGcSafeImpl(n: NimNode): bool = discard "see compiler/vmops.nim"
 proc hasNoSideEffectsImpl(n: NimNode): bool = discard "see compiler/vmops.nim"
-proc hasClosureImpl(n: NimNode): bool = discard "see compiler/vmops.nim"
 
 proc getRaisesList*(fn: NimNode): NimNode =
   ## Extracts the `.raises` list of the func/proc/etc `fn`.
@@ -54,11 +52,3 @@ proc hasNoSideEffects*(fn: NimNode): bool =
   ## arguments and not `untyped` arguments.
   expectKind fn, nnkSym
   result = hasNoSideEffectsImpl(fn)
-
-proc hasClosure*(fn: NimNode): bool {.since: (1, 5, 1).} =
-  ## Return true if the func/proc/etc `fn` has `closure`.
-  ## `fn` has to be a resolved symbol of kind `nnkSym`. This
-  ## implies that the macro that calls this proc should accept `typed`
-  ## arguments and not `untyped` arguments.
-  expectKind fn, nnkSym
-  result = hasClosureImpl(fn)
diff --git a/tests/stdlib/teffecttraits.nim b/tests/stdlib/ttypetraits.nim
similarity index 98%
rename from tests/stdlib/teffecttraits.nim
rename to tests/stdlib/ttypetraits.nim
index 4aae5ca83e..de8259ab01 100644
--- a/tests/stdlib/teffecttraits.nim
+++ b/tests/stdlib/ttypetraits.nim
@@ -2,7 +2,7 @@ discard """
   targets: "c cpp js"
 """
 
-import std/effecttraits
+import std/typetraits