diff --git a/python-pyo.spec b/python-pyo.spec
index bebce8b..787c8cf 100644
--- a/python-pyo.spec
+++ b/python-pyo.spec
@@ -54,7 +54,7 @@ cp %{SOURCE1} .
 
 %build
 export CFLAGS="%{optflags}"
-%pyproject_wheel -C="--build-option=--use-jack" -C="--build-option=--use-double"
+%pyproject_wheel -C "--build-option=--use-jack" -C "--build-option=--use-double"
 
 %install
 %pyproject_install