diff --git a/gmsh.spec b/gmsh.spec
index 0455ad7..52b66ae 100644
--- a/gmsh.spec
+++ b/gmsh.spec
@@ -287,7 +287,7 @@ popd
 %endif
 
 # Built html documentation
-make -C build-serial html
+make -C build-serial/%{__cmake_builddir} html
 
 # Fix to create correct debuginfo
 cp -a Parser/Gmsh.* build-serial