diff --git a/src/Sushi.php b/src/Sushi.php
index 6c7fc95..fb3abcb 100644
--- a/src/Sushi.php
+++ b/src/Sushi.php
@@ -159,6 +159,10 @@ public function createTable(string $tableName, $firstRow)
                 $type = $schema[$column] ?? $type;
 
                 $table->{$type}($column)->nullable();
+
+                if ($column === $this->primaryKey) {
+                    $table->primary($this->primaryKey);
+                }
             }
 
             if ($this->usesTimestamps() && (! in_array('updated_at', array_keys($firstRow)) || ! in_array('created_at', array_keys($firstRow)))) {