diff --git a/nodejs-libxmljs.spec b/nodejs-libxmljs.spec
index 0d4f883..a6fa1ed 100644
--- a/nodejs-libxmljs.spec
+++ b/nodejs-libxmljs.spec
@@ -4,7 +4,7 @@
 
 Name:       nodejs-libxmljs
 Version:    0.18.7
-Release:    1%{?dist}
+Release:    2%{?dist}
 Summary:    Node.js module that provides libxml bindings for the v8 javascript engine
 License:    MIT
 Group:      System Environment/Libraries
@@ -47,7 +47,7 @@ rm -rf vendor/
 %build
 %nodejs_symlink_deps --build
 export CXXFLAGS="%{optflags}"
-export LDFLAGS="%{?__global_ldflags}"
+export LDFLAGS="%{?__global_ldflags} -Wl,-z,undefs"
 node-gyp configure
 node-gyp build
 
@@ -77,6 +77,9 @@ ln -s Release/lib.target/xmljs.node build/xmljs.node
 
 
 %changelog
+* Tue Jan 23 2018 Tom Hughes <tom@compton.nu> - 0.18.7-2
+- Allow undefined symbols in the shared object
+
 * Thu Aug 10 2017 Tom Hughes <tom@compton.nu> - 0.18.7-1
 - Update to 0.18.7 upstream release
 - Disable failing memory leak tests