diff --git a/src/common/linux/http_upload.cc b/src/common/linux/http_upload.cc
index 1ab4b12b..f971651e 100644
--- a/src/common/linux/http_upload.cc
+++ b/src/common/linux/http_upload.cc
@@ -62,6 +62,7 @@ bool HTTPUpload::SendRequest(const string &url,
                              const string &file_part_name,
                              const string &proxy,
                              const string &proxy_user_pwd,
+                             const string &ca_certificate_file,
                              string *response_body,
                              string *error_description) {
   if (!CheckParameters(parameters))
@@ -107,6 +108,9 @@ bool HTTPUpload::SendRequest(const string &url,
   if (!proxy_user_pwd.empty())
     (*curl_easy_setopt)(curl, CURLOPT_PROXYUSERPWD, proxy_user_pwd.c_str());
 
+  if (!ca_certificate_file.empty())
+    (*curl_easy_setopt)(curl, CURLOPT_CAINFO, ca_certificate_file.c_str());
+
   struct curl_httppost *formpost = NULL;
   struct curl_httppost *lastptr = NULL;
   // Add form data.
diff --git a/src/common/linux/http_upload.h b/src/common/linux/http_upload.h
index fa6ad12c..e98b25de 100644
--- a/src/common/linux/http_upload.h
+++ b/src/common/linux/http_upload.h
@@ -61,6 +61,7 @@ class HTTPUpload {
                           const string &file_part_name,
                           const string &proxy,
                           const string &proxy_user_pwd,
+                          const string &ca_certificate_file,
                           string *response_body,
                           string *error_description);