diff --git a/CHANGELOG b/CHANGELOG
index 89833189..940c040e 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -76,6 +76,10 @@ HISTORY
 
  ++ Bugfixes:
 
+  2012-03-12: Simon Goldschmidt (patch by Bostjan Meglic)
+  * ppp.c: fixed bug #35809: PPP GetMask(): Compiler warning on big endian,
+    possible bug on little endian system
+
   2012-02-23: Simon Goldschmidt
   * etharp.c: fixed bug #35595: Impossible to send broadcast without a gateway
     (introduced when fixing bug# 33551)
diff --git a/src/netif/ppp/ppp.c b/src/netif/ppp/ppp.c
index 06d9699f..8e8fae9f 100644
--- a/src/netif/ppp/ppp.c
+++ b/src/netif/ppp/ppp.c
@@ -1272,7 +1272,7 @@ GetMask(u32_t addr)
 {
   u32_t mask, nmask;
 
-  htonl(addr);
+  addr = htonl(addr);
   if (IP_CLASSA(addr)) { /* determine network mask for address class */
     nmask = IP_CLASSA_NET;
   } else if (IP_CLASSB(addr)) {