diff --git a/mbedtls.spec b/mbedtls.spec
index 8fcba7d..596745e 100644
--- a/mbedtls.spec
+++ b/mbedtls.spec
@@ -70,14 +70,13 @@ BuildArch:      noarch
 The %{name}-doc package contains documentation.
 
 %prep
-%autosetup -n mbedtls-mbedtls-2.16.7
+%autosetup -n %{name}-%{name}-%{version}
 
 sed -i 's|//\(#define MBEDTLS_PKCS11_C\)|\1|' include/mbedtls/config.h
 sed -i 's|//\(#define MBEDTLS_HAVEGE_C\)|\1|' include/mbedtls/config.h
 sed -i 's|//\(#define MBEDTLS_THREADING_C\)|\1|' include/mbedtls/config.h
 sed -i 's|//\(#define MBEDTLS_THREADING_PTHREAD\)|\1|' include/mbedtls/config.h
 sed -i 's|//\(#define MBEDTLS_ZLIB_SUPPORT\)|\1|' include/mbedtls/config.h
-sed -i 's|//\(#define MBEDTLS_CMAC_C\)|\1|' include/mbedtls/config.h
 
 %build