diff --git a/packages/sigma/src/rendering/programs/edge-arrow/index.ts b/packages/sigma/src/rendering/programs/edge-arrow/index.ts
index 1ecc4a723..761e41baf 100644
--- a/packages/sigma/src/rendering/programs/edge-arrow/index.ts
+++ b/packages/sigma/src/rendering/programs/edge-arrow/index.ts
@@ -5,10 +5,10 @@
  * Compound program rendering edges as an arrow from the source to the target.
  * @module
  */
-import { createEdgeCompoundProgram } from "../../edge";
+import { EdgeProgramType, createEdgeCompoundProgram } from "../../edge";
 import EdgeArrowHeadProgram from "../edge-arrow-head";
 import EdgeClampedProgram from "../edge-clamped";
 
-const EdgeArrowProgram = createEdgeCompoundProgram([EdgeClampedProgram, EdgeArrowHeadProgram]);
+const EdgeArrowProgram: EdgeProgramType = createEdgeCompoundProgram([EdgeClampedProgram, EdgeArrowHeadProgram]);
 
 export default EdgeArrowProgram;