diff --git a/example_designs/make.py b/example_designs/make.py
old mode 100644
new mode 100755
diff --git a/test/Makefile b/test/Makefile
index 0f3ccc2..36575a1 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -3,12 +3,12 @@ PYTHON = python3
 CMD = $(PYTHON)
 
 model_tb:
-	PYTHONPATH=./ $(CMD) ./model/mac.py
-	PYTHONPATH=./ $(CMD) ./model/arp.py
-	PYTHONPATH=./ $(CMD) ./model/ip.py
-	PYTHONPATH=./ $(CMD) ./model/udp.py
-	PYTHONPATH=./ $(CMD) ./model/icmp.py
-	PYTHONPATH=./ $(CMD) ./model/etherbone.py
+	cd ../ && PYTHONPATH=./ $(CMD) test/model/mac.py
+	cd ../ && PYTHONPATH=./ $(CMD) test/model/arp.py
+	cd ../ && PYTHONPATH=./ $(CMD) test/model/ip.py
+	cd ../ && PYTHONPATH=./ $(CMD) test/model/udp.py
+	cd ../ && PYTHONPATH=./ $(CMD) test/model/icmp.py
+	cd ../ && PYTHONPATH=./ $(CMD) test/model/etherbone.py
 
 example_designs:
 	cd ../example_designs && $(PYTHON) make.py -t base -s BaseSoC -p kc705 -Ob run False build-bitstream
diff --git a/test/model/arp.py b/test/model/arp.py
index 1604730..6b9eba4 100644
--- a/test/model/arp.py
+++ b/test/model/arp.py
@@ -124,8 +124,8 @@ class ARP(Module):
         request.target_ip = ip_address
 
 if __name__ == "__main__":
-    from model.dumps import *
-    from model.mac import *
+    from test.model.dumps import *
+    from test.model.mac import *
     errors = 0
     # ARP request
     packet = MACPacket(arp_request)
diff --git a/test/model/icmp.py b/test/model/icmp.py
index 8ab900e..1b2b200 100644
--- a/test/model/icmp.py
+++ b/test/model/icmp.py
@@ -85,9 +85,9 @@ class ICMP(Module):
         pass
 
 if __name__ == "__main__":
-    from model.dumps import *
-    from model.mac import *
-    from model.ip import *
+    from test.model.dumps import *
+    from test.model.mac import *
+    from test.model.ip import *
     errors = 0
     # ICMP packet
     packet = MACPacket(ping_request)
diff --git a/test/model/ip.py b/test/model/ip.py
index 36264be..0ca3785 100644
--- a/test/model/ip.py
+++ b/test/model/ip.py
@@ -132,8 +132,8 @@ class IP(Module):
                 self.icmp_callback(packet)
 
 if __name__ == "__main__":
-    from model.dumps import *
-    from model.mac import *
+    from test.model.dumps import *
+    from test.model.mac import *
     errors = 0
     # UDP packet
     packet = MACPacket(udp)
diff --git a/test/model/mac.py b/test/model/mac.py
index 5eab4ac..765ff02 100644
--- a/test/model/mac.py
+++ b/test/model/mac.py
@@ -135,7 +135,7 @@ class MAC(Module):
                 raise ValueError  # XXX handle this properly
 
 if __name__ == "__main__":
-    from model.dumps import *
+    from test.model.dumps import *
     errors = 0
     packet = MACPacket(arp_request)
     packet.decode_remove_header()
diff --git a/test/model/udp.py b/test/model/udp.py
index 495e3fe..322bf03 100644
--- a/test/model/udp.py
+++ b/test/model/udp.py
@@ -96,9 +96,9 @@ class UDP(Module):
                 self.etherbone_callback(packet)
 
 if __name__ == "__main__":
-    from model.dumps import *
-    from model.mac import *
-    from model.ip import *
+    from test.model.dumps import *
+    from test.model.mac import *
+    from test.model.ip import *
     errors = 0
     # UDP packet
     packet = MACPacket(udp)