diff --git a/rust-error-chain.spec b/rust-error-chain.spec
index 5d2ea12..ff93aca 100644
--- a/rust-error-chain.spec
+++ b/rust-error-chain.spec
@@ -2,6 +2,8 @@
 %bcond_without check
 %global debug_package %{nil}
 
+%global __cargo_is_bin() false
+
 %global crate error-chain
 
 Name:           rust-%{crate}