diff --git a/changelog.md b/changelog.md
index bf90208007..ce2fc08f3d 100644
--- a/changelog.md
+++ b/changelog.md
@@ -3,6 +3,8 @@
 ### Changes affecting backwards compatibility
 
 - The stdlib module ``future`` has been renamed to ``sugar``.
+- ``macros.callsite`` is now deprecated. Since the introduction of ``varargs``
+  parameters this became unnecessary.
 
 #### Breaking changes in the standard library
 
diff --git a/lib/core/macros.nim b/lib/core/macros.nim
index 3614cf71ae..4e935c5e87 100644
--- a/lib/core/macros.nim
+++ b/lib/core/macros.nim
@@ -361,8 +361,10 @@ proc genSym*(kind: NimSymKind = nskLet; ident = ""): NimNode {.
   ## generates a fresh symbol that is guaranteed to be unique. The symbol
   ## needs to occur in a declaration context.
 
-proc callsite*(): NimNode {.magic: "NCallSite", benign.}
+proc callsite*(): NimNode {.magic: "NCallSite", benign,
+  deprecated: "use varargs[untyped] in the macro prototype instead".}
   ## returns the AST of the invocation expression that invoked this macro.
+  ## **Deprecated since version 0.18.1**.
 
 proc toStrLit*(n: NimNode): NimNode {.compileTime.} =
   ## converts the AST `n` to the concrete Nim code and wraps that