diff --git a/rust.spec b/rust.spec
index 6774390..2151c69 100644
--- a/rust.spec
+++ b/rust.spec
@@ -130,8 +130,8 @@ invoking gdb on rust binaries.
 export CPPFLAGS="%{optflags}" # eliminate complain from RPMlint
 # FIXME: you should use the %%configure macro
 %configure --disable-option-checking \
-    --build=%{rust_triple}
-    --host=%{rust_triple}
+    --build=%{rust_triple} \
+    --host=%{rust_triple} \
     --target=%{rust_triple} \
     --enable-local-rust \
     --local-rust-root=%{_prefix} \