diff --git a/http2/server.go b/http2/server.go
index b624dc0a70..9bd7035bfe 100644
--- a/http2/server.go
+++ b/http2/server.go
@@ -2192,7 +2192,7 @@ func (sc *serverConn) newWriterAndRequestNoBody(st *stream, rp requestParam) (*r
 		tlsState = sc.tlsState
 	}
 
-	needsContinue := rp.header.Get("Expect") == "100-continue"
+	needsContinue := httpguts.HeaderValuesContainsToken(rp.header["Expect"], "100-continue")
 	if needsContinue {
 		rp.header.Del("Expect")
 	}
diff --git a/http2/server_test.go b/http2/server_test.go
index 178c28b058..fd62dcb931 100644
--- a/http2/server_test.go
+++ b/http2/server_test.go
@@ -2332,7 +2332,7 @@ func TestServer_Response_Automatic100Continue(t *testing.T) {
 	}, func(st *serverTester) {
 		st.writeHeaders(HeadersFrameParam{
 			StreamID:      1, // clients send odd numbers
-			BlockFragment: st.encodeHeader(":method", "POST", "expect", "100-continue"),
+			BlockFragment: st.encodeHeader(":method", "POST", "expect", "100-Continue"),
 			EndStream:     false,
 			EndHeaders:    true,
 		})