diff --git a/diff-pdf.spec b/diff-pdf.spec
index 4e2a4e0..1fe97ac 100644
--- a/diff-pdf.spec
+++ b/diff-pdf.spec
@@ -44,7 +44,7 @@ diff-pdf is a simple tool for comparing two PDF files.
 
 %build
 export CXXFLAGS="%{optflags} -fpermissive"
-export LDFLAGS='-Wl,-z,relro,-z,now'
+export LDFLAGS='-Wl,--as-needed -Wl,--no-undefined -Wl,-z,now'
 ./bootstrap
 %configure
 make %{?_smp_mflags} V=1