diff --git a/src/platform.c b/src/platform.c
index 1d90952..118c739 100644
--- a/src/platform.c
+++ b/src/platform.c
@@ -10,7 +10,7 @@
 
 U32 platform_page_size(void)
 {
-    return getpagesize();
+    return sysconf(_SC_PAGESIZE);
 }
 
 void *platform_malloc(size_t size)