diff --git a/vesc_ackermann/CMakeLists.txt b/vesc_ackermann/CMakeLists.txt
index 5d99968..58bb538 100644
--- a/vesc_ackermann/CMakeLists.txt
+++ b/vesc_ackermann/CMakeLists.txt
@@ -33,7 +33,7 @@ catkin_package(
 
 include_directories(
   include
-  ${Boost_INCLUDE_DIR}
+  ${Boost_INCLUDE_DIRS}
   ${catkin_INCLUDE_DIRS}
 )
 
diff --git a/vesc_driver/CMakeLists.txt b/vesc_driver/CMakeLists.txt
index 6baf7ae..ece8de1 100644
--- a/vesc_driver/CMakeLists.txt
+++ b/vesc_driver/CMakeLists.txt
@@ -21,7 +21,7 @@ catkin_package(
 
 include_directories(
   include
-  ${Boost_INCLUDE_DIR}
+  ${Boost_INCLUDE_DIRS}
   ${catkin_INCLUDE_DIRS}
 )