diff --git a/CMakeLists.txt b/CMakeLists.txt
index 683c0b3..ac15399 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,10 +1,6 @@
 cmake_minimum_required(VERSION 2.8)
 project(multirow)
 
-set(CMAKE_CXX_STANDARD 11)
-set(CMAKE_CXX_FLAGS  "${CMAKE_CXX_FLAGS} -Werror")
-set(CMAKE_C_FLAGS  "${CMAKE_CXX_FLAGS} -Werror")
-
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/cmake")
 find_package(CPLEX REQUIRED)
 include_directories(${CPLEX_INCLUDE_DIR})
@@ -12,6 +8,10 @@ include_directories(${CPLEX_INCLUDE_DIR})
 find_package(GMP REQUIRED)
 find_package(OpenMP REQUIRED)
 
+set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_FLAGS  "${CMAKE_CXX_FLAGS} -Werror ${OpenMP_CXX_FLAGS}")
+set(CMAKE_C_FLAGS  "${CMAKE_CXX_FLAGS} -Werror ${OpenMP_C_FLAGS}")
+
 include_directories(${gtest_SOURCE_DIR}/include)
 include_directories(infinity/library/include)
 include_directories(lifting/library/include)
diff --git a/onerow/benchmark/CMakeLists.txt b/onerow/benchmark/CMakeLists.txt
index 2405d69..2b7cc7e 100644
--- a/onerow/benchmark/CMakeLists.txt
+++ b/onerow/benchmark/CMakeLists.txt
@@ -1,2 +1,9 @@
 add_executable(onerow-benchmark.run src/main.cpp)
-target_link_libraries (onerow-benchmark.run LINK_PUBLIC qxx_static onerow_static m pthread ${GMP_LIBRARIES} ${CPLEX_LIBRARIES})
+target_link_libraries (onerow-benchmark.run LINK_PUBLIC
+    qxx_static
+    onerow_static
+    m
+    pthread
+    ${GMP_LIBRARIES}
+    ${CPLEX_LIBRARIES}
+    ${OpenMP_LIBRARIES})
diff --git a/onerow/benchmark/src/main.cpp b/onerow/benchmark/src/main.cpp
index 351ab97..f36374e 100644
--- a/onerow/benchmark/src/main.cpp
+++ b/onerow/benchmark/src/main.cpp
@@ -98,6 +98,8 @@ int main(int argc, char **argv)
 
 	Stats::set_input_filename(string(input_filename));
 
+	time_printf("Using OpenMP (%d threads)\n", omp_get_max_threads());
+
 	// reads input file
 	time_printf("Reading input file: %s...\n", input_filename);
 	status = CPXreadcopyprob(env, lp, input_filename, NULL);