diff --git a/plugins/input/csv/csv_utils.cpp b/plugins/input/csv/csv_utils.cpp
index 382b1ce..c0256de 100644
--- a/plugins/input/csv/csv_utils.cpp
+++ b/plugins/input/csv/csv_utils.cpp
@@ -40,6 +40,8 @@
 #include <cstdio>
 #include <algorithm>
 
+#include <boost/algorithm/string/trim.hpp>
+
 namespace csv_utils {
 namespace detail {