diff --git a/tests/net/buf/src/main.c b/tests/net/buf/src/main.c
index 5b2aeec6cc5..9b89e65c437 100644
--- a/tests/net/buf/src/main.c
+++ b/tests/net/buf/src/main.c
@@ -484,6 +484,8 @@ static void net_buf_test_byte_order(void)
 	zassert_equal(u16, net_buf_pull_be16(buf),
 		      "Invalid 16 bits byte order");
 
+	net_buf_reset(buf);
+
 	net_buf_add_le16(buf, u16);
 	net_buf_add_be16(buf, u16);
 
@@ -492,6 +494,8 @@ static void net_buf_test_byte_order(void)
 	zassert_mem_equal(be16, net_buf_pull_mem(buf, sizeof(be16)),
 			  sizeof(be16), "Invalid 16 bits byte order");
 
+	net_buf_reset(buf);
+
 	net_buf_add_mem(buf, &le24, sizeof(le24));
 	net_buf_add_mem(buf, &be24, sizeof(be24));
 
@@ -499,6 +503,8 @@ static void net_buf_test_byte_order(void)
 	zassert_equal(u32, net_buf_pull_be24(buf),
 		      "Invalid 24 bits byte order");
 
+	net_buf_reset(buf);
+
 	net_buf_add_le24(buf, u32);
 	net_buf_add_be24(buf, u32);
 
@@ -507,6 +513,8 @@ static void net_buf_test_byte_order(void)
 	zassert_mem_equal(be24, net_buf_pull_mem(buf, sizeof(be24)),
 			  sizeof(be24), "Invalid 24 bits byte order");
 
+	net_buf_reset(buf);
+
 	net_buf_add_mem(buf, &le32, sizeof(le32));
 	net_buf_add_mem(buf, &be32, sizeof(be32));
 
@@ -514,6 +522,8 @@ static void net_buf_test_byte_order(void)
 	zassert_equal(u32, net_buf_pull_be32(buf),
 		      "Invalid 32 bits byte order");
 
+	net_buf_reset(buf);
+
 	net_buf_add_le32(buf, u32);
 	net_buf_add_be32(buf, u32);
 
@@ -522,6 +532,8 @@ static void net_buf_test_byte_order(void)
 	zassert_mem_equal(be32, net_buf_pull_mem(buf, sizeof(be32)),
 			  sizeof(be32), "Invalid 32 bits byte order");
 
+	net_buf_reset(buf);
+
 	net_buf_add_mem(buf, &le48, sizeof(le48));
 	net_buf_add_mem(buf, &be48, sizeof(be48));
 
@@ -529,6 +541,8 @@ static void net_buf_test_byte_order(void)
 	zassert_equal(u64, net_buf_pull_be48(buf),
 		      "Invalid 48 bits byte order");
 
+	net_buf_reset(buf);
+
 	net_buf_add_le48(buf, u64);
 	net_buf_add_be48(buf, u64);
 
@@ -537,6 +551,8 @@ static void net_buf_test_byte_order(void)
 	zassert_mem_equal(be48, net_buf_pull_mem(buf, sizeof(be48)),
 			  sizeof(be48), "Invalid 48 bits byte order");
 
+	net_buf_reset(buf);
+
 	net_buf_add_mem(buf, &le64, sizeof(le64));
 	net_buf_add_mem(buf, &be64, sizeof(be64));
 
@@ -544,6 +560,8 @@ static void net_buf_test_byte_order(void)
 	zassert_equal(u64, net_buf_pull_be64(buf),
 		      "Invalid 64 bits byte order");
 
+	net_buf_reset(buf);
+
 	net_buf_add_le64(buf, u64);
 	net_buf_add_be64(buf, u64);