diff --git a/src/os/linux/linux_sigar.c b/src/os/linux/linux_sigar.c
index 61b174c8..148cbe9f 100644
--- a/src/os/linux/linux_sigar.c
+++ b/src/os/linux/linux_sigar.c
@@ -134,7 +134,7 @@ int sigar_os_open(sigar_t **sigar)
     }
 
     (*sigar)->pagesize = 0;
-    i = sysconf(_SC_PAGESIZE);
+    i = getpagesize();
     while ((i >>= 1) > 0) {
         (*sigar)->pagesize++;
     }