diff --git a/compiler-rt/lib/scudo/standalone/tests/map_test.cpp b/compiler-rt/lib/scudo/standalone/tests/map_test.cpp
--- a/compiler-rt/lib/scudo/standalone/tests/map_test.cpp
+++ b/compiler-rt/lib/scudo/standalone/tests/map_test.cpp
@@ -17,7 +17,7 @@
 
 TEST(ScudoMapTest, PageSize) {
   EXPECT_EQ(scudo::getPageSizeCached(),
-            static_cast<scudo::uptr>(getpagesize()));
+            static_cast<scudo::uptr>(sysconf(_SC_PAGESIZE)));
 }
 
 TEST(ScudoMapDeathTest, MapNoAccessUnmap) {