diff --git a/jester.nim b/jester.nim
index f5b065b..778d040 100644
--- a/jester.nim
+++ b/jester.nim
@@ -488,14 +488,6 @@ proc serve*(
       asyncCheck serveFut
     runForever()
 
-template resp*(code: HttpCode,
-               headers: openarray[tuple[key, value: string]],
-               content: string): typed =
-  ## Sets ``(code, headers, content)`` as the response.
-  bind TCActionSend, newHttpHeaders
-  result = (TCActionSend, code, headers.newHttpHeaders.some(), content, true)
-  break route
-
 template setHeader(headers: var Option[RawHeaders], key, value: string): typed =
   bind isNone
   if isNone(headers):
@@ -513,6 +505,17 @@ template setHeader(headers: var Option[RawHeaders], key, value: string): typed =
       # Add key if it doesn't exist.
       headers = some(h & @({key: value}))
 
+template resp*(code: HttpCode,
+               headers: openarray[tuple[key, value: string]],
+               content: string): typed =
+  ## Sets ``(code, headers, content)`` as the response.
+  bind TCActionSend
+  result = (TCActionSend, code, none[RawHeaders](), content, true)
+  for header in headers:
+    setHeader(result[2], header[0], header[1])
+  break route
+
+
 template resp*(content: string, contentType = "text/html;charset=utf-8"): typed =
   ## Sets ``content`` as the response; ``Http200`` as the status code
   ## and ``contentType`` as the Content-Type.
diff --git a/tests/alltest.nim b/tests/alltest.nim
index e08a8e7..a973d36 100644
--- a/tests/alltest.nim
+++ b/tests/alltest.nim
@@ -200,4 +200,7 @@ routes:
     sendFile(getCurrentDir() / "tests/public/root/test_file.txt")
 
   get "/query":
-    resp $request.params
\ No newline at end of file
+    resp $request.params
+
+  get "/issue157":
+    resp(Http200, [("Content-Type","text/css")] , "foo")
\ No newline at end of file
diff --git a/tests/tester.nim b/tests/tester.nim
index de08f4f..25bd2a0 100644
--- a/tests/tester.nim
+++ b/tests/tester.nim
@@ -118,6 +118,11 @@ proc allTest(useStdLib: bool) =
     let resp = waitFor client.get(address & "/foo/query?q=test")
     check (waitFor resp.body) == """{"q": "test"}"""
 
+  test "issue 157":
+    let resp = waitFor client.get(address & "/foo/issue157")
+    let headers = resp.headers
+    check headers["Content-Type"] == "text/css"
+
   suite "static":
     test "index.html":
       let resp = waitFor client.get(address & "/foo/root")