diff --git a/CMakeLists.txt b/CMakeLists.txt
index 55b6b16..54f0664 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -434,7 +434,7 @@
 ENDIF (SUITESPARSE)
 
 IF (CXSPARSE)
-  INCLUDE_DIRECTORIES(${CXSPARSE_INCLUDE})
+  INCLUDE_DIRECTORIES(${CXSPARSE_INCLUDE_DIRS})
 ENDIF (CXSPARSE)
 
 IF (GFLAGS)