diff --git a/frc971/control_loops/BUILD b/frc971/control_loops/BUILD
index c220b96..1fba54f 100644
--- a/frc971/control_loops/BUILD
+++ b/frc971/control_loops/BUILD
@@ -65,6 +65,7 @@
   deps = [
     ':queues',
     ':gaussian_noise',
+    '//external:libm',
   ],
 )
 
@@ -76,6 +77,9 @@
   hdrs = [
     'gaussian_noise.h',
   ],
+  deps = [
+    '//external:libm',
+  ],
 )
 
 cc_library(