@@ -76,14 +76,15 @@
 				lossy: (bool)lossy;
 - (OFString*)OF_JSONRepresentationWithOptions: (int)options
 					depth: (size_t)depth;
 @end
 
-extern bool of_unicode_to_iso_8859_15(const of_unichar_t*, char*, size_t, bool);
-extern bool of_unicode_to_windows_1252(const of_unichar_t*, char*, size_t,
+extern bool of_unicode_to_iso_8859_15(const of_unichar_t*, uint8_t*, size_t,
+    bool);
+extern bool of_unicode_to_windows_1252(const of_unichar_t*, uint8_t*, size_t,
     bool);
-extern bool of_unicode_to_codepage_437(const of_unichar_t*, char*, size_t,
+extern bool of_unicode_to_codepage_437(const of_unichar_t*, uint8_t*, size_t,
     bool);
 
 /* References for static linking */
 void _references_to_categories_of_OFString(void)
 {
@@ -1067,34 +1068,34 @@
 		return length;
 	case OF_STRING_ENCODING_ISO_8859_15:
 		if (length + 1 > maxLength)
 			@throw [OFOutOfRangeException exception];
 
-		if (!of_unicode_to_iso_8859_15(characters, cString, length,
-		    lossy))
+		if (!of_unicode_to_iso_8859_15(characters, (uint8_t*)cString,
+		    length, lossy))
 			@throw [OFInvalidEncodingException exception];
 
 		cString[length] = '\0';
 
 		return length;
 	case OF_STRING_ENCODING_WINDOWS_1252:
 		if (length + 1 > maxLength)
 			@throw [OFOutOfRangeException exception];
 
-		if (!of_unicode_to_windows_1252(characters, cString, length,
-		    lossy))
+		if (!of_unicode_to_windows_1252(characters, (uint8_t*)cString,
+		    length, lossy))
 			@throw [OFInvalidEncodingException exception];
 
 		cString[length] = '\0';
 
 		return length;
 	case OF_STRING_ENCODING_CODEPAGE_437:
 		if (length + 1 > maxLength)
 			@throw [OFOutOfRangeException exception];
 
-		if (!of_unicode_to_codepage_437(characters, cString, length,
-		    lossy))
+		if (!of_unicode_to_codepage_437(characters, (uint8_t*)cString,
+		    length, lossy))
 			@throw [OFInvalidEncodingException exception];
 
 		cString[length] = '\0';
 
 		return length;