diff --git a/src/utils/omp.h b/src/utils/omp.h
index 933ad97f6..73dcf6449 100644
--- a/src/utils/omp.h
+++ b/src/utils/omp.h
@@ -10,7 +10,7 @@
 #else
 #ifndef DISABLE_OPENMP
 // use pragma message instead of warning
-#pragma message "Warning: OpenMP is not available, xgboost will be compiled into single thread code. You may want to ungrade your compiler to enable OpenMP support, to get benefit of multi-threading."
+#pragma message ("Warning: OpenMP is not available, xgboost will be compiled into single thread code. You may want to ungrade your compiler to enable OpenMP support, to get benefit of multi-threading.")
 #endif
 inline int omp_get_thread_num() { return 0; }
 inline int omp_get_num_threads() { return 1; }