diff --git a/boinc-client.spec b/boinc-client.spec
index e17704d..a59a55e 100644
--- a/boinc-client.spec
+++ b/boinc-client.spec
@@ -128,7 +128,7 @@ done
   --disable-fcgi \
   --enable-unicode \
   --with-wx-config=/usr/bin/wx-config-3.0 \
-  --enable_wx_debug=no \
+  --enable-wx-debug=no \
   --with-ssl \
   --with-x \
   STRIP=: \