diff --git a/xcode/common-release.xcconfig b/xcode/common-release.xcconfig
index 6809b757d3..b3d569692e 100644
--- a/xcode/common-release.xcconfig
+++ b/xcode/common-release.xcconfig
@@ -7,4 +7,5 @@ GCC_OPTIMIZATION_LEVEL = 3
 GCC_PREPROCESSOR_DEFINITIONS = $(inherited) RELEASE _RELEASE NDEBUG OMIM_PRODUCTION HAVE_PTHREAD
 GCC_UNROLL_LOOPS = YES
 MTL_ENABLE_DEBUG_INFO = NO
+NS_BLOCK_ASSERTIONS = NO
 SWIFT_OPTIMIZATION_LEVEL = -Owholemodule