diff --git a/ruby.c b/ruby.c
index cf13eee20a..273fd4d1c4 100644
--- a/ruby.c
+++ b/ruby.c
@@ -439,7 +439,7 @@ ruby_init_loadpath(void)
     ruby_init_loadpath_safe(0);
 }
 
-#if defined(LOAD_RELATIVE) && defined(HAVE_DLADDR)
+#if defined(LOAD_RELATIVE) && defined(HAVE_DLADDR) && !defined(__CYGWIN__)
 static VALUE
 dladdr_path(const void* addr)
 {