diff --git a/zxing-cpp.spec b/zxing-cpp.spec
index aac107e..9fec75a 100644
--- a/zxing-cpp.spec
+++ b/zxing-cpp.spec
@@ -62,7 +62,7 @@ developing applications that use %{name}.
 rm -v thirdparty/stb/stb_image_write.h thirdparty/stb/stb_image.h
 # stb_image.h is trivially forked: reconstruct the changes with the latest
 # unbundled copy
-cp -p %{_includedir}/stb/stb_image.h thirdparty/stb/
+cp -p /usr/include/stb/stb_image.h thirdparty/stb/
 pushd thirdparty/stb
 patch -p1 < stb_image.patch
 popd