diff --git a/relapack/src/CMakeLists.txt b/relapack/src/CMakeLists.txt
index 2d861f54b..78fb1431f 100644
--- a/relapack/src/CMakeLists.txt
+++ b/relapack/src/CMakeLists.txt
@@ -1,5 +1,6 @@
 include_directories(${PROJECT_SOURCE_DIR})
 include_directories(${PROJECT_BINARY_DIR})
+include_directories(${PROJECT_SOURCE_DIR}/relapack)
 
 set(RELAFILES
 clauum.c