diff --git a/nfq2/helpers.c b/nfq2/helpers.c
index 09e4a1c..2697a49 100644
--- a/nfq2/helpers.c
+++ b/nfq2/helpers.c
@@ -396,16 +396,16 @@ void phton64(uint8_t *p, uint64_t v)
 	p[7] = (uint8_t)v;
 }
 
-uint16_t swap16(uint16_t u)
+uint16_t bswap16(uint16_t u)
 {
 	// __builtin_bswap16 is absent in ancient lexra gcc 4.6
 	return (u>>8) | ((u&0xFF)<<8);
 }
-uint32_t swap24(uint32_t u)
+uint32_t bswap24(uint32_t u)
 {
 	return (u>>16) & 0xFF | u & 0xFF00 | (u<<16) & 0xFF0000;
 }
-uint64_t swap48(uint64_t u)
+uint64_t bswap48(uint64_t u)
 {
 	return ((u & 0xFF0000000000) >> 40) | ((u & 0xFF00000000) >> 24) | ((u & 0xFF000000) >> 8) | ((u & 0xFF0000) << 8) | ((u & 0xFF00) << 24) | ((u & 0xFF) << 40);
 }
diff --git a/nfq2/helpers.h b/nfq2/helpers.h
index 2012403..1a96a5b 100644
--- a/nfq2/helpers.h
+++ b/nfq2/helpers.h
@@ -66,9 +66,9 @@ void phton48(uint8_t *p, uint64_t v);
 uint64_t pntoh64(const uint8_t *p);
 void phton64(uint8_t *p, uint64_t v);
 
-uint16_t swap16(uint16_t u);
-uint32_t swap24(uint32_t u);
-uint64_t swap48(uint64_t u);
+uint16_t bswap16(uint16_t u);
+uint32_t bswap24(uint32_t u);
+uint64_t bswap48(uint64_t u);
 
 bool parse_hex_str(const char *s, uint8_t *pbuf, size_t *size);
 char hex_digit(uint8_t v);
diff --git a/nfq2/lua.c b/nfq2/lua.c
index a237e37..1925a77 100644
--- a/nfq2/lua.c
+++ b/nfq2/lua.c
@@ -279,7 +279,7 @@ static int luacall_swap16(lua_State *L)
 	int64_t i = (int64_t)luaL_checklint(L,1);
 	if (i>0xFFFF || i<-(int64_t)0xFFFF) luaL_error(L, "out of range");
 	uint16_t u = (uint16_t)i;
-	lua_pushinteger(L,swap16(u));
+	lua_pushinteger(L,bswap16(u));
 	return 1;
 }
 static int luacall_swap24(lua_State *L)
@@ -289,7 +289,7 @@ static int luacall_swap24(lua_State *L)
 	int64_t i =(int64_t)luaL_checklint(L,1);
 	if (i>0xFFFFFF || i<-(int64_t)0xFFFFFF) luaL_error(L, "out of range");
 	uint32_t u = (uint32_t)i;
-	lua_pushlint(L,swap24(u));
+	lua_pushlint(L,bswap24(u));
 	return 1;
 }
 static int luacall_swap32(lua_State *L)
@@ -309,7 +309,7 @@ static int luacall_swap48(lua_State *L)
 	int64_t i =(int64_t)luaL_checklint(L,1);
 	if (i>0xFFFFFFFFFFFF || i<-(int64_t)0xFFFFFFFFFFFF) luaL_error(L, "out of range");
 	uint64_t u = (uint64_t)i;
-	lua_pushlint(L, swap48(u));
+	lua_pushlint(L, bswap48(u));
 	return 1;
 }
 static int lua_uxadd(lua_State *L, int64_t max)