diff --git a/test/functional/rpc_estimatefee.py b/test/functional/rpc_estimatefee.py
index 51b7efb4c3..4690a90d7a 100755
--- a/test/functional/rpc_estimatefee.py
+++ b/test/functional/rpc_estimatefee.py
@@ -36,6 +36,9 @@ class EstimateFeeTest(BitcoinTestFramework):
         assert_raises_rpc_error(-1, "estimatesmartfee", self.nodes[0].estimatesmartfee, 1, 'ECONOMICAL', 1)
         assert_raises_rpc_error(-1, "estimaterawfee", self.nodes[0].estimaterawfee, 1, 1, 1)
 
+        # max value of 1008 per src/policy/fees.h
+        assert_raises_rpc_error(-8, "Invalid conf_target, must be between 1 and 1008", self.nodes[0].estimaterawfee, 1009)
+
         # valid calls
         self.nodes[0].estimatesmartfee(1)
         # self.nodes[0].estimatesmartfee(1, None)