diff --git a/include/PolyVox/LowPassFilter.inl b/include/PolyVox/LowPassFilter.inl
index 07e53974..f66ab22d 100644
--- a/include/PolyVox/LowPassFilter.inl
+++ b/include/PolyVox/LowPassFilter.inl
@@ -22,6 +22,8 @@
 * SOFTWARE.
 *******************************************************************************/
 
+#include "PolyVox/RawVolume.h" // Currently used by exectureSAT() method - should be replaced by PagedVolume or a template parameter?
+
 namespace PolyVox
 {
 	/**