diff --git a/src/bridge.h b/src/bridge.h
--- a/src/bridge.h
+++ b/src/bridge.h
@@ -63,7 +63,7 @@ bool HasBridgeFlatRamp(Slope tileh, Axis
  * @param i The type of bridge to get the specification for.
  * @return The specification.
  */
-static inline const BridgeSpec *GetBridgeSpec(BridgeType i)
+inline const BridgeSpec *GetBridgeSpec(BridgeType i)
 {
 	assert(i < lengthof(_bridge));
 	return &_bridge[i];