diff --git a/arch/x86_64/crypto/Makefile b/arch/x86_64/crypto/Makefile
index 176f5bb6b511..37ed30fabda2 100644
--- a/arch/x86_64/crypto/Makefile
+++ b/arch/x86_64/crypto/Makefile
@@ -8,5 +8,5 @@ obj-$(CONFIG_CRYPTO_AES_X86_64) += aes-x86_64.o
 obj-$(CONFIG_CRYPTO_TWOFISH_X86_64) += twofish-x86_64.o
 
 aes-x86_64-y := aes-x86_64-asm_64.o aes.o
-twofish-x86_64-y := twofish-x86_64-asm.o twofish_64.o
+twofish-x86_64-y := twofish-x86_64-asm_64.o twofish_64.o
 
diff --git a/arch/x86_64/crypto/twofish-x86_64-asm.S b/arch/x86_64/crypto/twofish-x86_64-asm_64.S
similarity index 100%
rename from arch/x86_64/crypto/twofish-x86_64-asm.S
rename to arch/x86_64/crypto/twofish-x86_64-asm_64.S