diff --git a/Custom.py b/Custom.py
index 05fc0860c0e49d7c2a99d6ef7203bc409cc25d8b..1430e7fb937148ab6daf5eaff9c0dc401bc3a981 100644
--- a/Custom.py
+++ b/Custom.py
@@ -1,4 +1,4 @@
-from Protocol import Protocol
+from .Protocol import Protocol
 
 class Custom(Protocol):
 
diff --git a/Transport.py b/Transport.py
index 7905792efe77d389e5a03d1d1c2ecae75a9f8c72..8046743a1e0e598bf7b02a3158d1c624a66418c0 100644
--- a/Transport.py
+++ b/Transport.py
@@ -1,4 +1,4 @@
-from Protocol import Protocol
+from .Protocol import Protocol
 
 class Transport(Protocol):
     
diff --git a/arp.py b/arp.py
index acf8d15697cdf0158925ecb4e707d2bbc7665204..4412afb7940c67d4bd810825e94f9e77b451098b 100644
--- a/arp.py
+++ b/arp.py
@@ -1,4 +1,4 @@
-from Protocol import Protocol
+from .Protocol import Protocol
 
 class arp(Protocol):
 
diff --git a/coap.py b/coap.py
index b082682aaee68e65e81ac45d87141aeb80af0771..5a0733d5631c6413e30e0e6e31f8a75c1b5fb72d 100644
--- a/coap.py
+++ b/coap.py
@@ -1,4 +1,4 @@
-from Custom import Custom
+from .Custom import Custom
 
 class coap(Custom):
     
diff --git a/dhcp.py b/dhcp.py
index 63d144fbd547c9129cdaee1ba4ca908e269544dc..1f67a54b4e014684fc14a04a7371e8e1ce85f64b 100644
--- a/dhcp.py
+++ b/dhcp.py
@@ -1,4 +1,4 @@
-from Custom import Custom
+from .Custom import Custom
 
 class dhcp(Custom):
     
diff --git a/dns.py b/dns.py
index 0d6e001f97bef6f307b5342e91e5c6b9262c49a4..dd0d0ae6f91e2b898872c3987f7a46750d5593c6 100644
--- a/dns.py
+++ b/dns.py
@@ -1,4 +1,4 @@
-from Custom import Custom
+from .Custom import Custom
 
 class dns(Custom):
     
diff --git a/http.py b/http.py
index 91441e3bc231d46a38ef8d9439d224db704fb4e0..1487548bee980711affeda5e01af0ed4fec4e8a7 100644
--- a/http.py
+++ b/http.py
@@ -1,4 +1,4 @@
-from Custom import Custom
+from .Custom import Custom
 
 class http(Custom):
     
diff --git a/icmp.py b/icmp.py
index db83d5d0e00a0644f83d812ff88c28c4804555ff..55e60d22c1a0b39471cad5ce2162df67c106aa6e 100644
--- a/icmp.py
+++ b/icmp.py
@@ -1,4 +1,4 @@
-from Protocol import Protocol
+from .Protocol import Protocol
 
 class icmp(Protocol):
 
diff --git a/icmpv6.py b/icmpv6.py
index 211e2b0939607495472ba7493b394ac74ca6f46a..7ce2b509ffc737ababf5e5bac03e5cf29064a9cf 100644
--- a/icmpv6.py
+++ b/icmpv6.py
@@ -1,4 +1,4 @@
-from Protocol import Protocol
+from .Protocol import Protocol
 
 class icmpv6(Protocol):
 
diff --git a/igmp.py b/igmp.py
index acda001f763007d69bcf72004ee49ec478d8efd6..cdb39e8355750a7d886be3ef9ba080f6f847747b 100644
--- a/igmp.py
+++ b/igmp.py
@@ -1,4 +1,4 @@
-from Custom import Custom
+from .Custom import Custom
 
 class igmp(Custom):
     
diff --git a/ip.py b/ip.py
index f6ce60e8502ae3fbcd39fce9c026fe6b6f1387ef..28cd726b308cbe6eb306c9fa35e537f3a1a149bd 100644
--- a/ip.py
+++ b/ip.py
@@ -1,7 +1,7 @@
 from typing import Union
 import ipaddress
-from Protocol import Protocol
-from igmp import igmp
+from .Protocol import Protocol
+from .igmp import igmp
 
 class ip(Protocol):
 
diff --git a/ipv4.py b/ipv4.py
index 0777fd78187e1b176321b2a5058e2440554a9a85..93f4b06ac6aeab705fe3a61e986485a8df2abe8c 100644
--- a/ipv4.py
+++ b/ipv4.py
@@ -1,4 +1,4 @@
-from ip import ip
+from .ip import ip
 
 class ipv4(ip):
 
diff --git a/ipv6.py b/ipv6.py
index 6bd206cf588ccd81d5702dc0fb9385b01cc6e5ff..00367ef4556540d7f0b695a74b9c954e61158c65 100644
--- a/ipv6.py
+++ b/ipv6.py
@@ -1,5 +1,5 @@
-from ip import ip
-from icmpv6 import icmpv6
+from .ip import ip
+from .icmpv6 import icmpv6
 
 class ipv6(ip):
 
diff --git a/mdns.py b/mdns.py
index 68cf457964021a0dcf2050df65988758052a2fbe..5053e0513e76fa26caf300053fb9a7eca42cb8bf 100644
--- a/mdns.py
+++ b/mdns.py
@@ -1,4 +1,4 @@
-from dns import dns
+from .dns import dns
 
 class mdns(dns):
     
diff --git a/ssdp.py b/ssdp.py
index 32e8c76332d9cc25be45a941839185ceddf229dd..927d9c5d5315a9e9d0b944cf9bd5ab8e78efaeb9 100644
--- a/ssdp.py
+++ b/ssdp.py
@@ -1,4 +1,4 @@
-from Custom import Custom
+from .Custom import Custom
 
 class ssdp(Custom):
     
diff --git a/tcp.py b/tcp.py
index 18ec8cae8cf975cb4f1e78aafd030042f0bae119..98924b3598db7e6a3a7677e426ee8041859a7e9c 100644
--- a/tcp.py
+++ b/tcp.py
@@ -1,4 +1,4 @@
-from Transport import Transport
+from .Transport import Transport
 
 class tcp(Transport):
     
diff --git a/udp.py b/udp.py
index 0f128346327ea1992e90f92864261a0f1abb08ce..1647cbcfb0e9b276bf8743e8a24a3b11ee48efd0 100644
--- a/udp.py
+++ b/udp.py
@@ -1,4 +1,4 @@
-from Transport import Transport
+from .Transport import Transport
 
 class udp(Transport):