diff --git a/tests/libs/dlopen_b.cpp b/tests/libs/dlopen_b.cpp
index 092c96c..5b36242 100644
--- a/tests/libs/dlopen_b.cpp
+++ b/tests/libs/dlopen_b.cpp
@@ -1,8 +1,9 @@
 #include <dlfcn.h>
-extern "C" void *dlopen_b() {
-  // Work around for http://b/20049306, which isn't going to be fixed.
-  static int defeat_sibling_call_optimization = 0;
 
+// Work around for http://b/20049306, which isn't going to be fixed.
+int defeat_sibling_call_optimization = 0;
+
+extern "C" void* dlopen_b() {
   // This is supposed to succeed because this library has DT_RUNPATH
   // for libtest_dt_runpath_x.so which should be taken into account
   // by dlopen.