diff --git a/freqtrade/freqtradebot.py b/freqtrade/freqtradebot.py
index 99670d612..2225ddd89 100644
--- a/freqtrade/freqtradebot.py
+++ b/freqtrade/freqtradebot.py
@@ -1399,9 +1399,13 @@ class FreqtradeBot(LoggingMixin):
         Check if the custom price is of the good type if not return proposed_price
         :return: valid price for the order
         """
-        if custom_price and (isinstance(custom_price, int)
-                             or isinstance(custom_price, float)):
-            valid_price = custom_price
+        if custom_price:
+            if isinstance(custom_price, int):
+                valid_price = float(custom_price)
+            elif isinstance(custom_price, float):
+                valid_price = custom_price
+            else:
+                valid_price = proposed_price
         else:
             valid_price = proposed_price
 
diff --git a/tests/test_freqtradebot.py b/tests/test_freqtradebot.py
index 69a4fa530..a67f5b290 100644
--- a/tests/test_freqtradebot.py
+++ b/tests/test_freqtradebot.py
@@ -4588,3 +4588,27 @@ def test_refind_lost_order(mocker, default_conf, fee, caplog):
 
     freqtrade.refind_lost_order(trades[4])
     assert log_has(f"Error updating {order['id']}.", caplog)
+
+
+def test_get_valid_price(mocker, default_conf) -> None:
+    patch_RPCManager(mocker)
+    patch_exchange(mocker)
+    freqtrade = FreqtradeBot(default_conf)
+
+    custom_price_string = "10"
+    custom_price_float = 10.0
+    custom_price_int = 10
+
+    proposed_price = 12.2
+
+    valid_price_from_string = freqtrade.get_valid_price(custom_price_string, proposed_price)
+    valid_price_from_int = freqtrade.get_valid_price(custom_price_int, proposed_price)
+    valid_price_from_float = freqtrade.get_valid_price(custom_price_float, proposed_price)
+
+    assert isinstance(valid_price_from_string, float)
+    assert isinstance(valid_price_from_int, float)
+    assert isinstance(valid_price_from_float, float)
+
+    assert valid_price_from_string == proposed_price
+    assert valid_price_from_int == custom_price_int
+    assert valid_price_from_float == custom_price_float