diff --git a/CMakeLists.txt b/CMakeLists.txt
index d9bc7be..e63349a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -11,7 +11,7 @@ project(astaroth C CXX CUDA)
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR})
 
 ## Project-wide compilation flags
-set(COMMON_FLAGS "-mavx -Wall -Wextra -Werror -Wdouble-promotion -Wfloat-conversion -Wshadow")
+set(COMMON_FLAGS "-mavx -DOMPI_SKIP_MPICXX -Wall -Wextra -Werror -Wdouble-promotion -Wfloat-conversion -Wshadow") # -DOMPI_SKIP_MPICXX is to force OpenMPI to use the C interface
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${COMMON_FLAGS}")
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${COMMON_FLAGS}")
 set(CMAKE_C_STANDARD 11)