diff --git a/src/OpenMPUtilities.h b/src/OpenMPUtilities.h
index b523bbd1..4d4cc2cc 100644
--- a/src/OpenMPUtilities.h
+++ b/src/OpenMPUtilities.h
@@ -44,7 +44,7 @@
 // Set max-active-levels to the max supported, if possible
 // (supported_active_levels is OpenMP 5.0 (November 2018) or later, only.)
 #if (_OPENMP >= 201811)
-  #define OPEN_MP_MAX_ACTIVE openmp_get_supported_active_levels()
+  #define OPEN_MP_MAX_ACTIVE omp_get_supported_active_levels()
 #else
   #define OPEN_MP_MAX_ACTIVE OPEN_MP_NUM_PROCESSORS
 #endif