diff --git a/eb_hooks.py b/eb_hooks.py
index 96fa48e129..ed006bae1c 100644
--- a/eb_hooks.py
+++ b/eb_hooks.py
@@ -743,7 +743,7 @@ def post_sanitycheck_cuda(self, *args, **kwargs):
                         # under host_injections
                         accel_subdir = os.getenv("EESSI_ACCELERATOR_TARGET")
                         if accel_subdir:
-                            host_inj_path = host_inj_path.replace('/accel/%s' % accel_subdir, '')
+                            host_inj_path = host_inj_path.replace("/accel/%s" % accel_subdir, '')
                         # make sure source and target of symlink are not the same
                         if full_path == host_inj_path:
                             raise EasyBuildError("Source (%s) and target (%s) are the same location, are you sure you "