diff --git a/compiler/concepts.nim b/compiler/concepts.nim
index 89a2bdc109..628e1d4be0 100644
--- a/compiler/concepts.nim
+++ b/compiler/concepts.nim
@@ -61,6 +61,8 @@ proc semConceptDecl(c: PContext; n: PNode): PNode =
     for i in 0..<n.len-1:
       result[i] = n[i]
     result[^1] = semConceptDecl(c, n[^1])
+  of nkCommentStmt:
+    discard
   else:
     localError(c.config, n.info, "unexpected construct in the new-styled concept: " & renderTree(n))
     result = n
diff --git a/tests/concepts/t20237.nim b/tests/concepts/t20237.nim
new file mode 100644
index 0000000000..db9002421b
--- /dev/null
+++ b/tests/concepts/t20237.nim
@@ -0,0 +1,3 @@
+type Foo = concept
+  ## doc comment
+  proc foo(x: Self)