diff --git a/src/Forms/DateField.php b/src/Forms/DateField.php
index adff7afb1..dd86aed6f 100644
--- a/src/Forms/DateField.php
+++ b/src/Forms/DateField.php
@@ -338,10 +338,6 @@ class DateField extends TextField
             return $this;
         }
 
-        if (is_array($value)) {
-            throw new InvalidArgumentException("Use setSubmittedValue to assign by array");
-        }
-
         // Re-run through formatter to tidy up (e.g. remove time component)
         $this->value = $this->tidyISO8601($value);
         return $this;
diff --git a/src/Forms/DatetimeField.php b/src/Forms/DatetimeField.php
index aeda8cbcf..52b802dc3 100644
--- a/src/Forms/DatetimeField.php
+++ b/src/Forms/DatetimeField.php
@@ -349,9 +349,6 @@ class DatetimeField extends TextField
             $this->value = null;
             return $this;
         }
-        if (is_array($value)) {
-            throw new InvalidArgumentException("Use setSubmittedValue to assign by array");
-        };
 
         // Validate iso 8601 date
         // If invalid, assign for later validation failure