diff --git a/BUILD b/BUILD
index a20ac246..7189a67c 100644
--- a/BUILD
+++ b/BUILD
@@ -56,7 +56,6 @@ cc_library(
         "src/point_one/fusion_engine/messages/measurements.h",
         "src/point_one/fusion_engine/messages/signal_defs.h",
         "src/point_one/fusion_engine/messages/solution.h",
-        "src/point_one/fusion_engine/messages/sta5635.h",
     ],
     deps = [
         ":common",
@@ -64,6 +63,17 @@ cc_library(
     ],
 )
 
+# STA5635 RF front-end message definitions.
+cc_library(
+    name = "sta5635",
+    hdrs = [
+        "src/point_one/fusion_engine/messages/sta5635.h",
+    ],
+    deps = [
+        ":core_headers",
+    ],
+)
+
 # ROS translation message definitions.
 cc_library(
     name = "ros_support",