diff --git a/internal/app/config.go b/internal/app/config.go
index 0c17317..96c51ce 100644
--- a/internal/app/config.go
+++ b/internal/app/config.go
@@ -55,7 +55,7 @@ type SandboxConfig struct {
 	// do not run in new session
 	NoNewSession bool `json:"no_new_session,omitempty"`
 	// map target user uid to privileged user uid in the user namespace
-	UseRealUID bool `json:"use_real_uid"`
+	MapRealUID bool `json:"map_real_uid"`
 	// mediated access to wayland socket
 	Wayland bool `json:"wayland,omitempty"`
 
@@ -92,7 +92,7 @@ func (s *SandboxConfig) Bwrap(os linux.System) (*bwrap.Config, error) {
 	}
 
 	var uid int
-	if !s.UseRealUID {
+	if !s.MapRealUID {
 		uid = 65534
 	} else {
 		uid = os.Geteuid()
@@ -185,7 +185,7 @@ func Template() *Config {
 				UserNS:       true,
 				Net:          true,
 				NoNewSession: true,
-				UseRealUID:   true,
+				MapRealUID:   true,
 				Dev:          true,
 				Wayland:      false,
 				// example API credentials pulled from Google Chrome
diff --git a/internal/app/seal.go b/internal/app/seal.go
index 0b60920..0846a7f 100644
--- a/internal/app/seal.go
+++ b/internal/app/seal.go
@@ -130,7 +130,7 @@ func (a *app) Seal(config *Config) error {
 	seal.sys = new(appSealSys)
 
 	// mapped uid
-	if config.Confinement.Sandbox != nil && config.Confinement.Sandbox.UseRealUID {
+	if config.Confinement.Sandbox != nil && config.Confinement.Sandbox.MapRealUID {
 		seal.sys.mappedID = a.os.Geteuid()
 	} else {
 		seal.sys.mappedID = 65534
diff --git a/nixos.nix b/nixos.nix
index b6d72d7..4757dab 100644
--- a/nixos.nix
+++ b/nixos.nix
@@ -130,7 +130,7 @@ in
                       Whether to allow userns within sandbox.
                     '';
 
-                    useRealUid = mkEnableOption ''
+                    mapRealUid = mkEnableOption ''
                       Whether to map to fortify's real UID within the sandbox.
                     '';
 
@@ -330,7 +330,7 @@ in
                           dev
                           env
                           ;
-                        use_real_uid = launcher.useRealUid;
+                        map_real_uid = launcher.mapRealUid;
                         filesystem =
                           [
                             { src = "/bin"; }