diff --git a/rust-libm.spec b/rust-libm.spec
index 355c86e..2af692a 100644
--- a/rust-libm.spec
+++ b/rust-libm.spec
@@ -105,6 +105,7 @@ which use "stable" feature of "%{crate}" crate.
 
 %prep
 %autosetup -n %{crate}-%{version_no_tilde} -p1
+sed -i -e '/#!\[deny(warnings)\]/d' src/lib.rs
 %cargo_prep
 
 %generate_buildrequires