diff --git a/hyperliquid/info_test.go b/hyperliquid/info_test.go
index bd84b95..52ce96c 100644
--- a/hyperliquid/info_test.go
+++ b/hyperliquid/info_test.go
@@ -11,6 +11,9 @@ func GetInfoAPI() *InfoAPI {
 		api.SetDebugActive()
 	}
 	TEST_ADDRESS := os.Getenv("TEST_ADDRESS")
+	if TEST_ADDRESS == "" {
+		panic("Set TEST_ADDRESS in .env file")
+	}
 	api.SetAccountAddress(TEST_ADDRESS)
 	return api
 }
@@ -61,6 +64,17 @@ func TestInfoAPI_GetAccountFills(t *testing.T) {
 	if len(*res) == 0 {
 		t.Errorf("GetAccountFills() len = %v, want > %v", res, 0)
 	}
+	res0 := (*res)[0]
+	t.Logf("res0 = %+v", res0)
+	if res0.Px == 0 {
+		t.Errorf("res0.Px = %v, want > %v", res0.Px, 0)
+	}
+	if res0.Sz == 0 {
+		t.Errorf("res0.Sz = %v, want > %v", res0.Sz, 0)
+	}
+	if res0.Fee == 0 {
+		t.Errorf("res0.Fee = %v, want > %v", res0.Fee, 0)
+	}
 	t.Logf("GetAccountFills() = %v", res)
 }
 
diff --git a/hyperliquid/info_types.go b/hyperliquid/info_types.go
index 9f836ff..082d133 100644
--- a/hyperliquid/info_types.go
+++ b/hyperliquid/info_types.go
@@ -91,18 +91,18 @@ type Meta struct {
 
 type OrderFill struct {
 	Cloid         string       `json:"cloid"`
-	ClosedPnl     string       `json:"closedPnl"`
+	ClosedPnl     float64      `json:"closedPnl,string"`
 	Coin          string       `json:"coin"`
 	Crossed       bool         `json:"crossed"`
 	Dir           string       `json:"dir"`
-	Fee           string       `json:"fee"`
+	Fee           float64      `json:"fee,string"`
 	FeeToken      string       `json:"feeToken"`
 	Hash          string       `json:"hash"`
 	Oid           int          `json:"oid"`
-	Px            string       `json:"px"`
+	Px            float64      `json:"px,string"`
 	Side          string       `json:"side"`
 	StartPosition string       `json:"startPosition"`
-	Sz            string       `json:"sz"`
+	Sz            float64      `json:"sz,string"`
 	Tid           int64        `json:"tid"`
 	Time          int64        `json:"time"`
 	Liquidation   *Liquidation `json:"liquidation"`