Index: ObjFW.xcodeproj/project.pbxproj
==================================================================
--- ObjFW.xcodeproj/project.pbxproj
+++ ObjFW.xcodeproj/project.pbxproj
@@ -1935,10 +1935,11 @@
 					"-Werror",
 					"-Wshorten-64-to-32",
 					"-Wwrite-strings",
 					"-Wcast-align",
 					"-Wpointer-arith",
+					"-Wno-objc-root-class",
 				);
 			};
 			name = Debug;
 		};
 		1DEB919508733D9F0010E9CD /* Release */ = {
@@ -1961,10 +1962,11 @@
 					"-Werror",
 					"-Wshorten-64-to-32",
 					"-Wwrite-strings",
 					"-Wcast-align",
 					"-Wpointer-arith",
+					"-Wno-objc-root-class",
 				);
 			};
 			name = Release;
 		};
 		4B187E20163EA29F0049A832 /* Debug */ = {