diff --git a/src/options.cpp b/src/options.cpp
index 4112526..1054d80 100644
--- a/src/options.cpp
+++ b/src/options.cpp
@@ -3,6 +3,7 @@
 #include <iostream>
 #include <fstream>
 #include <sys/stat.h>
+#include <string.h>
 
 Options::Options(){
     in1 = "";
@@ -79,4 +80,4 @@ bool Options::validate() {
         error_exit("no sample found, did you provide a valid sample sheet CSV file by -s or --sample_sheet?");
 
     return true;
-}
\ No newline at end of file
+}
diff --git a/src/threadconfig.cpp b/src/threadconfig.cpp
index 8a672d4..03edc52 100644
--- a/src/threadconfig.cpp
+++ b/src/threadconfig.cpp
@@ -1,5 +1,6 @@
 #include "threadconfig.h"
 #include "util.h"
+#include <memory.h>
 
 ThreadConfig::ThreadConfig(Options* opt, int threadId){
     mOptions = opt;
@@ -82,4 +83,4 @@ void ThreadConfig::initWriter(ofstream* stream) {
 void ThreadConfig::initWriter(gzFile gzfile) {
     deleteWriter();
     mWriter1 = new Writer(gzfile);
-}
\ No newline at end of file
+}