diff --git a/gruel/CMakeLists.txt b/gruel/CMakeLists.txt
index 3e8c516..627135a 100644
--- a/gruel/CMakeLists.txt
+++ b/gruel/CMakeLists.txt
@@ -37,7 +37,6 @@ include(GrMiscUtils)
 GR_SET_GLOBAL(GRUEL_INCLUDE_DIRS
     ${CMAKE_CURRENT_SOURCE_DIR}/src/include
     ${CMAKE_CURRENT_BINARY_DIR}/src/include
-    ${Boost_INCLUDE_DIRS}
 )
 
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