diff --git a/scripts/cmake/Find.cmake b/scripts/cmake/Find.cmake
index fa7512347171b9cf06e0c07b0cc1aea684f0c302..5a60cc890bc31fc3506ab2937a1021cc96a474e2 100644
--- a/scripts/cmake/Find.cmake
+++ b/scripts/cmake/Find.cmake
@@ -135,9 +135,7 @@ IF(OGS_USE_PETSC)
     SET(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${PROJECT_SOURCE_DIR}/scripts/cmake/findPETSC")
     FIND_PACKAGE(PETSc REQUIRED)
 
-    include_directories(
-              ${PETSC_INCLUDES}
-     )
+    INCLUDE_DIRECTORIES(${PETSC_INCLUDES})
 
     ADD_DEFINITIONS(-DPETSC_VERSION_NUMBER=PETSC_VERSION_MAJOR*1000+PETSC_VERSION_MINOR*10)