diff --git a/libwvdrmengine/cdm/core/src/privacy_crypto_boringssl.cpp b/libwvdrmengine/cdm/core/src/privacy_crypto_boringssl.cpp
index 908cb7dc..13156209 100644
--- a/libwvdrmengine/cdm/core/src/privacy_crypto_boringssl.cpp
+++ b/libwvdrmengine/cdm/core/src/privacy_crypto_boringssl.cpp
@@ -336,11 +336,12 @@ bool ExtractExtensionValueFromCertificate(const std::string& cert,
   STACK_OF(X509)* certs = pkcs7->d.sign->cert;
 
   // Find the desired certificate from the stack.
-  if (cert_index >= static_cast<size_t>(sk_X509_num(certs))) {
+  const size_t num_certs = static_cast<size_t>(sk_X509_num(certs));
+  if (cert_index >= num_certs) {
     LOGE(
         "Unexpected number of certificates in chain: "
         "count = %zu, minimum = %zu",
-        sk_X509_num(certs), cert_index + 1);
+        num_certs, cert_index + 1);
     return false;
   }
 
diff --git a/libwvdrmengine/oemcrypto/ref/src/oemcrypto_usage_table_ref.h b/libwvdrmengine/oemcrypto/ref/src/oemcrypto_usage_table_ref.h
index a2d87d01..d112695b 100644
--- a/libwvdrmengine/oemcrypto/ref/src/oemcrypto_usage_table_ref.h
+++ b/libwvdrmengine/oemcrypto/ref/src/oemcrypto_usage_table_ref.h
@@ -9,6 +9,7 @@
 
 #include <stdint.h>
 #include <map>
+#include <memory>
 #include <string>
 #include <vector>