diff --git a/crypto/CMakeLists.txt b/crypto/CMakeLists.txt
index 1529d27..90e127e 100644
--- a/crypto/CMakeLists.txt
+++ b/crypto/CMakeLists.txt
@@ -80,6 +80,7 @@ if(HOST_ASM_MACOSX_X86_64)
 	add_definitions(-DOPENSSL_CPUID_OBJ)
 	set(CRYPTO_SRC ${CRYPTO_SRC} ${ASM_X86_64_MACOSX_SRC})
 	set_property(SOURCE ${ASM_X86_64_MACOSX_SRC} PROPERTY LANGUAGE C)
+	set_property(SOURCE ${ASM_X86_64_MACOSX_SRC} PROPERTY XCODE_EXPLICIT_FILE_TYPE "sourcecode.asm")
 endif()
 
 if((NOT HOST_ASM_ELF_X86_64) AND (NOT HOST_ASM_MACOSX_X86_64))