diff --git a/src/applogic/mod.rs b/src/applogic/mod.rs
index e4ce98f..e9d28ba 100644
--- a/src/applogic/mod.rs
+++ b/src/applogic/mod.rs
@@ -80,6 +80,7 @@ pub enum SignalPhase {
     Yellow,
 }
 
+#[cfg(feature = "spat")]
 impl core::fmt::Display for SignalPhase {
     fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
         match self {
@@ -92,6 +93,7 @@ impl core::fmt::Display for SignalPhase {
     }
 }
 
+#[cfg(feature = "spat")]
 impl From<c_its_parser::standards::dsrc_2_2_1::etsi_its_dsrc::MovementPhaseState> for SignalPhase {
     fn from(value: c_its_parser::standards::dsrc_2_2_1::etsi_its_dsrc::MovementPhaseState) -> Self {
         use c_its_parser::standards::dsrc_2_2_1::etsi_its_dsrc::MovementPhaseState;