diff --git a/src/Util/StringUtils.php b/src/Util/StringUtils.php
index 5cc1e004..d312a3e8 100644
--- a/src/Util/StringUtils.php
+++ b/src/Util/StringUtils.php
@@ -16,7 +16,7 @@ public static function capitalizeName(string $name): string
 
     public static function camelCase(string $input): string
     {
-        $separatorCharacters = ["-", "_", "/", " "];
+        $separatorCharacters = ["-", "_", "/", " ", ":"];
         $canonicalizedName = str_replace($separatorCharacters, " ", $input);
         $words = explode(" ", $canonicalizedName);
 
diff --git a/tests/Generator/Fixtures/SpecialCharacterNames/Output/Foo.php b/tests/Generator/Fixtures/SpecialCharacterNames/Output/Foo.php
new file mode 100644
index 00000000..c4b4954b
--- /dev/null
+++ b/tests/Generator/Fixtures/SpecialCharacterNames/Output/Foo.php
@@ -0,0 +1,126 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Ns\SpecialCharacterNames;
+
+class Foo
+{
+    /**
+     * Schema used to validate input for creating instances of this class
+     *
+     * @var array
+     */
+    private static array $internalValidationSchema = [
+        'required' => [
+            'foo:bar',
+        ],
+        'properties' => [
+            'foo:bar' => [
+                'type' => 'string',
+            ],
+        ],
+    ];
+
+    /**
+     * @var string
+     */
+    private string $fooBar;
+
+    /**
+     * @param string $fooBar
+     */
+    public function __construct(string $fooBar)
+    {
+        $this->fooBar = $fooBar;
+    }
+
+    /**
+     * @return string
+     */
+    public function getFooBar() : string
+    {
+        return $this->fooBar;
+    }
+
+    /**
+     * @param string $fooBar
+     * @return self
+     */
+    public function withFooBar(string $fooBar) : self
+    {
+        $validator = new \JsonSchema\Validator();
+        $validator->validate($fooBar, self::$internalValidationSchema['properties']['foo:bar']);
+        if (!$validator->isValid()) {
+            throw new \InvalidArgumentException($validator->getErrors()[0]['message']);
+        }
+
+        $clone = clone $this;
+        $clone->fooBar = $fooBar;
+
+        return $clone;
+    }
+
+    /**
+     * Builds a new instance from an input array
+     *
+     * @param array|object $input Input data
+     * @param bool $validate Set this to false to skip validation; use at own risk
+     * @return Foo Created instance
+     * @throws \InvalidArgumentException
+     */
+    public static function buildFromInput(array|object $input, bool $validate = true) : Foo
+    {
+        $input = is_array($input) ? \JsonSchema\Validator::arrayToObjectRecursive($input) : $input;
+        if ($validate) {
+            static::validateInput($input);
+        }
+
+        $fooBar = $input->{'foo:bar'};
+
+        $obj = new self($fooBar);
+
+        return $obj;
+    }
+
+    /**
+     * Converts this object back to a simple array that can be JSON-serialized
+     *
+     * @return array Converted array
+     */
+    public function toJson() : array
+    {
+        $output = [];
+        $output['foo:bar'] = $this->fooBar;
+
+        return $output;
+    }
+
+    /**
+     * Validates an input array
+     *
+     * @param array|object $input Input data
+     * @param bool $return Return instead of throwing errors
+     * @return bool Validation result
+     * @throws \InvalidArgumentException
+     */
+    public static function validateInput(array|object $input, bool $return = false) : bool
+    {
+        $validator = new \JsonSchema\Validator();
+        $input = is_array($input) ? \JsonSchema\Validator::arrayToObjectRecursive($input) : $input;
+        $validator->validate($input, self::$internalValidationSchema);
+
+        if (!$validator->isValid() && !$return) {
+            $errors = array_map(function(array $e): string {
+                return $e["property"] . ": " . $e["message"];
+            }, $validator->getErrors());
+            throw new \InvalidArgumentException(join(", ", $errors));
+        }
+
+        return $validator->isValid();
+    }
+
+    public function __clone()
+    {
+    }
+}
\ No newline at end of file
diff --git a/tests/Generator/Fixtures/SpecialCharacterNames/schema.yaml b/tests/Generator/Fixtures/SpecialCharacterNames/schema.yaml
new file mode 100644
index 00000000..1d96dcad
--- /dev/null
+++ b/tests/Generator/Fixtures/SpecialCharacterNames/schema.yaml
@@ -0,0 +1,5 @@
+required:
+  - foo:bar
+properties:
+  foo:bar:
+    type: string