diff --git a/conf/gns3_server.conf b/conf/gns3_server.conf
index c83a49d2..bd76b87e 100644
--- a/conf/gns3_server.conf
+++ b/conf/gns3_server.conf
@@ -26,7 +26,7 @@ udp_start_port_range = 10000
 ; Last port of the range allocated for inter-device communication. Two ports are allocated per link
 udp_start_end_range = 20000
 ; uBridge executable location, default: search in PATH
-;ubridge_path = /usr/bin/ubridge
+;ubridge_path = ubridge
 
 ; Option to enable HTTP authentication.
 auth = False
@@ -37,20 +37,20 @@ password = gns3
 
 [VPCS]
 ; VPCS executable location, default: search in PATH
-;vpcs_path = /usr/bin/vpcs
+;vpcs_path = vpcs
 
 [Dynamips]
 ; Enable auxiliary console ports on IOS routers
 allocate_aux_console_ports = False
 mmap_support = True
 ; Dynamips executable path, default: search in PATH
-;dynamips_path = /usr/bin/dynamips
+;dynamips_path = dynamips
 sparse_memory_support = True
 ghost_ios_support = True
 
 [IOU]
 ; iouyap executable path, default: search in PATH
-;iouyap_path = /usr/bin/iouyap
+;iouyap_path = iouyap
 ; Path of your .iourc file. If not provided, the file is searched in $HOME/.iourc
 iourc_path = /home/gns3/.iourc
 ; Validate if the iourc license file is correct. If you turn this off and your licence is invalid IOU will not start and no errors will be shown.