diff --git a/lib/pure/strscans.nim b/lib/pure/strscans.nim
index 45ba9a469c..cbb1124420 100644
--- a/lib/pure/strscans.nim
+++ b/lib/pure/strscans.nim
@@ -512,7 +512,7 @@ macro scanTuple*(input: untyped; pattern: static[string]; matcherTypes: varargs[
           inc userMatches
       else: discard
     inc p
-  result.add nnkTupleConstr.newTree(newCall(ident("scanf"), input, newStrLitNode(pattern)))
+  result.add nnkTupleConstr.newTree(newCall(bindSym("scanf"), input, newStrLitNode(pattern)))
   for arg in arguments:
     result[^1][0].add arg
     result[^1].add arg
diff --git a/tests/stdlib/mstrscans_undecl_scanf.nim b/tests/stdlib/mstrscans_undecl_scanf.nim
new file mode 100644
index 0000000000..24ce23ee6d
--- /dev/null
+++ b/tests/stdlib/mstrscans_undecl_scanf.nim
@@ -0,0 +1,4 @@
+import std/strscans
+
+proc scan*[T](s: string): (bool, string) =
+  s.scanTuple("$+")
diff --git a/tests/stdlib/tstrscans_undecl_scanf.nim b/tests/stdlib/tstrscans_undecl_scanf.nim
new file mode 100644
index 0000000000..a2b6e8386f
--- /dev/null
+++ b/tests/stdlib/tstrscans_undecl_scanf.nim
@@ -0,0 +1,3 @@
+import std/assertions
+import ./mstrscans_undecl_scanf
+doAssert scan[int]("foo") == (true, "foo")