diff --git a/src/endianness.h b/src/endianness.h
index dabe75d..afd5151 100644
--- a/src/endianness.h
+++ b/src/endianness.h
@@ -132,17 +132,17 @@
 
 static __inline uint16_t end_bswap16(uint16_t __x)
 {
-        return __x<<8 | __x>>8;
+        return (__x<<8) | (__x>>8);
 }
 
 static __inline uint32_t end_bswap32(uint32_t __x)
 {
-        return __x>>24 | __x>>8&0xff00 | __x<<8&0xff0000 | __x<<24;
+        return (__x>>24) | (__x>>8&0xff00) | (__x<<8&0xff0000) | (__x<<24);
 }
 
 static __inline uint64_t end_bswap64(uint64_t __x)
 {
-        return end_bswap32(__x)+0ULL<<32 | end_bswap32(__x>>32);
+        return ((end_bswap32(__x)+0ULL)<<32) | (end_bswap32(__x>>32));
 }
 
 static __inline uint16_t end_net2host16(uint16_t net_number)