diff --git a/internal/cmdconfig/mappings.go b/internal/cmdconfig/mappings.go
index 948dd01b..af744300 100644
--- a/internal/cmdconfig/mappings.go
+++ b/internal/cmdconfig/mappings.go
@@ -73,6 +73,7 @@ func envMappings() map[string]cmdconfig.EnvMapping {
 		constants.EnvPipesToken:      {ConfigVar: []string{constants.ArgPipesToken}, VarType: cmdconfig.EnvVarTypeString},
 		// powerpipe specific constants
 		localconstants.EnvListen:           {ConfigVar: []string{constants.ArgListen}, VarType: cmdconfig.EnvVarTypeString},
+		localconstants.EnvPort:             {ConfigVar: []string{constants.ArgPort}, VarType: cmdconfig.EnvVarTypeInt},
 		localconstants.EnvBenchmarkTimeout: {ConfigVar: []string{constants.ArgBenchmarkTimeout}, VarType: cmdconfig.EnvVarTypeInt},
 		localconstants.EnvDashboardTimeout: {ConfigVar: []string{constants.ArgDashboardTimeout}, VarType: cmdconfig.EnvVarTypeInt},
 	}