diff --git a/src/propeller/gp.cljc b/src/propeller/gp.cljc
index 3e1e25d..67bc603 100644
--- a/src/propeller/gp.cljc
+++ b/src/propeller/gp.cljc
@@ -13,6 +13,7 @@
             [propeller.push.instructions.polymorphic]
             [propeller.push.instructions.string]
             [propeller.push.instructions.vector]
+            [propeller.push.instructions.signal]
             [propeller.selection :as selection]
             [propeller.utils :as utils]))