diff --git a/src/prim/osx/alloc-override-zone.c b/src/prim/osx/alloc-override-zone.c
index 0e0a99d9..9a317750 100644
--- a/src/prim/osx/alloc-override-zone.c
+++ b/src/prim/osx/alloc-override-zone.c
@@ -225,7 +225,9 @@ static malloc_zone_t mi_malloc_zone = {
   // switch to version 9+ on OSX 10.6 to support memalign.
   .memalign = &zone_memalign,
   .free_definite_size = &zone_free_definite_size,
+  #if defined(MAC_OS_X_VERSION_10_7) && (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_7)
   .pressure_relief = &zone_pressure_relief,
+  #endif
   #if defined(MAC_OS_X_VERSION_10_14) && (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_14)
   .claimed_address = &zone_claimed_address,
   #endif