diff --git a/oss-internship-2020/curl/custom_curl/custom_curl.cc b/oss-internship-2020/curl/custom_curl/custom_curl.cc
index fa63a26..0413ea4 100644
--- a/oss-internship-2020/curl/custom_curl/custom_curl.cc
+++ b/oss-internship-2020/curl/custom_curl/custom_curl.cc
@@ -12,9 +12,10 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#include <cstdlib>
 #include <iostream>
+
 #include "custom_curl.h"
-#include <stdlib.h>
 
 CURLcode curl_easy_setopt_ptr(CURL* handle, CURLoption option, void* parameter) {
     return curl_easy_setopt(handle, option, parameter);
diff --git a/oss-internship-2020/curl/custom_curl/custom_curl.h b/oss-internship-2020/curl/custom_curl/custom_curl.h
index 0576441..6df2971 100644
--- a/oss-internship-2020/curl/custom_curl/custom_curl.h
+++ b/oss-internship-2020/curl/custom_curl/custom_curl.h
@@ -17,8 +17,6 @@
 #ifndef CUSTOM_CURL_H
 #define CUSTOM_CURL_H
 
-#include <curl/curlver.h>
-#include <curl/system.h>
 #include <curl/curl.h>
 
 extern "C" CURLcode curl_easy_setopt_ptr(CURL *handle, CURLoption option, void* parameter);
diff --git a/oss-internship-2020/curl/examples/example1.cc b/oss-internship-2020/curl/examples/example1.cc
index 3e3feca..a0c67ea 100644
--- a/oss-internship-2020/curl/examples/example1.cc
+++ b/oss-internship-2020/curl/examples/example1.cc
@@ -15,8 +15,8 @@
 #include <libgen.h>
 #include <syscall.h>
 #include <iostream>
+
 #include "curl_sapi.sapi.h"
-#include "sandboxed_api/util/flag.h"
 
 /*
 int main() {