diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1731151..032700c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -21,5 +21,4 @@ add_executable (unshieldv3
 	ISArchiveV3.cpp
 	blast.c
 )
-target_link_libraries(unshieldv3 stdc++fs)
 install(TARGETS unshieldv3)
diff --git a/ISArchiveV3.cpp b/ISArchiveV3.cpp
index eb22871..a0d1398 100644
--- a/ISArchiveV3.cpp
+++ b/ISArchiveV3.cpp
@@ -18,6 +18,7 @@ limitations under the License.
 #include <algorithm>
 #include <cassert>
 #include <iostream>
+#include <sstream>
 #include <exception>
 extern "C" {
     #include "blast.h"