diff --git a/Rx.xcodeproj/project.pbxproj b/Rx.xcodeproj/project.pbxproj
index 7bb0d06e..970d16a7 100644
--- a/Rx.xcodeproj/project.pbxproj
+++ b/Rx.xcodeproj/project.pbxproj
@@ -1753,7 +1753,6 @@
 				COPY_PHASE_STRIP = NO;
 				CURRENT_PROJECT_VERSION = 1;
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
-				EMBEDDED_CONTENT_CONTAINS_SWIFT = YES;
 				ENABLE_NS_ASSERTIONS = NO;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				GCC_C_LANGUAGE_STANDARD = gnu99;
@@ -1870,7 +1869,6 @@
 				COPY_PHASE_STRIP = NO;
 				CURRENT_PROJECT_VERSION = 1;
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
-				EMBEDDED_CONTENT_CONTAINS_SWIFT = YES;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				ENABLE_TESTABILITY = YES;
 				GCC_C_LANGUAGE_STANDARD = gnu99;
@@ -1923,7 +1921,6 @@
 				COPY_PHASE_STRIP = NO;
 				CURRENT_PROJECT_VERSION = 1;
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
-				EMBEDDED_CONTENT_CONTAINS_SWIFT = YES;
 				ENABLE_NS_ASSERTIONS = NO;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				GCC_C_LANGUAGE_STANDARD = gnu99;