diff --git a/packages/wasm-miniscript/Makefile b/packages/wasm-miniscript/Makefile
index c0141ed..1cc1c17 100644
--- a/packages/wasm-miniscript/Makefile
+++ b/packages/wasm-miniscript/Makefile
@@ -13,9 +13,17 @@ define REMOVE_GITIGNORE
 	find $(1) -name .gitignore -delete
 endef
 
+define SHOW_WASM_SIZE
+	@find $(1) -name "*.wasm" -exec gzip -k {} \;
+	@find $(1) -name "*.wasm" -exec du -h {} \;
+	@find $(1) -name "*.wasm.gz" -exec du -h {} \;
+endef
+
 define BUILD
+	rm -rf $(1)
 	$(call WASM_PACK_COMMAND,$(1),$(2))
 	$(call REMOVE_GITIGNORE,$(1))
+	$(call SHOW_WASM_SIZE,$(1))
 endef
 
 .PHONY: js/wasm/