diff --git a/src/pcdPointTreeseg2txt.cpp b/src/pcdPointTreeseg2txt.cpp
index b189e55..af4d865 100644
--- a/src/pcdPointTreeseg2txt.cpp
+++ b/src/pcdPointTreeseg2txt.cpp
@@ -1,6 +1,7 @@
 #include "treeseg.h"
 
 #include <pcl/io/pcd_io.h>
+#include <boost/algorithm/string.hpp>
 
 int main (int argc, char **argv)
 {
diff --git a/src/pcdPointXYZRGB2txt.cpp b/src/pcdPointXYZRGB2txt.cpp
index 9fd1520..f99458f 100644
--- a/src/pcdPointXYZRGB2txt.cpp
+++ b/src/pcdPointXYZRGB2txt.cpp
@@ -1,4 +1,5 @@
 #include <pcl/io/pcd_io.h>
+#include <boost/algorithm/string.hpp>
 
 int main (int argc, char **argv)
 {
diff --git a/src/treeseg.cpp b/src/treeseg.cpp
index a7a0fd3..590759e 100644
--- a/src/treeseg.cpp
+++ b/src/treeseg.cpp
@@ -39,6 +39,7 @@
 #include <pcl/segmentation/region_growing.h>
 #include <pcl/segmentation/sac_segmentation.h>
 #include <pcl/octree/octree.h>
+#include <boost/algorithm/string.hpp>
 
 //File IO
 
diff --git a/src/txtPointTreeseg2pcd.cpp b/src/txtPointTreeseg2pcd.cpp
index cf8b2a0..04abfbe 100644
--- a/src/txtPointTreeseg2pcd.cpp
+++ b/src/txtPointTreeseg2pcd.cpp
@@ -1,6 +1,7 @@
 #include "treeseg.h"
 
 #include <pcl/io/pcd_io.h>
+#include <boost/algorithm/string.hpp>
 
 int main (int argc, char **argv)
 {