diff --git a/pass.xcodeproj/project.pbxproj b/pass.xcodeproj/project.pbxproj
index a37c81f..18b473a 100644
--- a/pass.xcodeproj/project.pbxproj
+++ b/pass.xcodeproj/project.pbxproj
@@ -1422,6 +1422,7 @@
 				SDKROOT = iphoneos;
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+				SWIFT_SWIFT3_OBJC_INFERENCE = On;
 			};
 			name = Debug;
 		};
@@ -1470,6 +1471,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = me.mssun.passforios;
 				SDKROOT = iphoneos;
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
+				SWIFT_SWIFT3_OBJC_INFERENCE = On;
 				VALIDATE_PRODUCT = YES;
 			};
 			name = Release;