diff --git a/openssl-sys/src/pem.rs b/openssl-sys/src/pem.rs
index 6bc2eca3..64703377 100644
--- a/openssl-sys/src/pem.rs
+++ b/openssl-sys/src/pem.rs
@@ -147,12 +147,14 @@ extern "C" {
 
     pub fn PEM_write_bio_PKCS7(bp: *mut BIO, x: *mut PKCS7) -> c_int;
 
+    #[cfg(ossl101)]
     pub fn PEM_read_bio_CMS(
         bio: *mut BIO,
         out: *mut *mut CMS_ContentInfo,
         callback: pem_password_cb,
         user_data: *mut c_void,
     ) -> *mut CMS_ContentInfo;
+    #[cfg(ossl101)]
     pub fn PEM_write_bio_CMS(bio: *mut BIO, cms: *const CMS_ContentInfo) -> c_int;
 }
 
diff --git a/openssl/src/cms.rs b/openssl/src/cms.rs
index fb5d627b..21af2a80 100644
--- a/openssl/src/cms.rs
+++ b/openssl/src/cms.rs
@@ -248,11 +248,10 @@ mod test {
 
         let encrypt = CmsContentInfo::encrypt(&cert_stack, &input.as_bytes(), Cipher::des_ede3_cbc(), CMSOptions::empty())
             .expect("failed create encrypted cms");
-        let encrypted_der = encrypt.to_der().expect("failed to create der from cms");
-        let encrypted_pem = encrypt.to_pem().expect("failed to create pem from cms");
 
         // decrypt cms message using private key cert (DER)
         {
+            let encrypted_der = encrypt.to_der().expect("failed to create der from cms");
             let decrypt = CmsContentInfo::from_der(&encrypted_der).expect("failed read cms from der");
             let decrypt = decrypt.decrypt(&priv_cert.pkey, &priv_cert.cert).expect("failed to decrypt cms");
             let decrypt = String::from_utf8(decrypt).expect("failed to create string from cms content");
@@ -261,6 +260,7 @@ mod test {
 
         // decrypt cms message using private key cert (PEM)
         {
+            let encrypted_pem = encrypt.to_pem().expect("failed to create pem from cms");
             let decrypt = CmsContentInfo::from_pem(&encrypted_pem).expect("failed read cms from pem");
             let decrypt = decrypt.decrypt(&priv_cert.pkey, &priv_cert.cert).expect("failed to decrypt cms");
             let decrypt = String::from_utf8(decrypt).expect("failed to create string from cms content");