diff --git a/tests/dlext_test.cpp b/tests/dlext_test.cpp
index baf7eb5..c7d4d46 100644
--- a/tests/dlext_test.cpp
+++ b/tests/dlext_test.cpp
@@ -169,6 +169,11 @@
   ASSERT_TRUE(handle_ == nullptr);
   ASSERT_EQ("dlopen failed: \"" + lib_realpath + "\" has bad ELF magic", dlerror());
 
+  // Check if dlsym works after unsuccessful dlopen().
+  // Supply non-exiting one to make linker visit every soinfo.
+  void* sym = dlsym(RTLD_DEFAULT, "this_symbol_does_not_exist___");
+  ASSERT_TRUE(sym == nullptr);
+
   close(extinfo.library_fd);
 }