diff --git a/var/spack/repos/builtin/packages/eospac/package.py b/var/spack/repos/builtin/packages/eospac/package.py
index 4399ef6039..1ee01f6f21 100644
--- a/var/spack/repos/builtin/packages/eospac/package.py
+++ b/var/spack/repos/builtin/packages/eospac/package.py
@@ -43,3 +43,8 @@ def install(self, spec, prefix):
                  'INSTALLED_INCLUDE_DIR={0}'.format(prefix.include),
                  'INSTALLED_EXAMPLE_DIR={0}'.format(prefix.example),
                  'INSTALLED_BIN_DIR={0}'.format(prefix.bin))
+
+        # fix conflict with linux's getopt for 6.4.0beta.2
+        if spec.satisfies('@6.4.0beta.2'):
+            with working_dir(prefix.bin):
+                move('getopt', 'driver_getopt')