diff --git a/easybuild/easyblocks/generic/bundle.py b/easybuild/easyblocks/generic/bundle.py
index a867fde5979..19efc0678da 100644
--- a/easybuild/easyblocks/generic/bundle.py
+++ b/easybuild/easyblocks/generic/bundle.py
@@ -108,6 +108,11 @@ def __init__(self, *args, **kwargs):
         # disable templating to avoid premature resolving of template values
         # Note that self.cfg.update also resolves templates!
         with self.cfg.disable_templating():
+            # Clear current top-level checksums (can only be of postinstall patches)
+            # to append later on to component patches
+            orig_checksums = self.cfg['checksums']
+            self.cfg['checksums'] = []
+
             # list of checksums for patches (must be included after checksums for sources)
             checksums_patches = []
 
@@ -230,12 +235,15 @@ def __init__(self, *args, **kwargs):
 
                 with comp_cfg.allow_unresolved_templates():
                     comp_patches = comp_cfg['patches']
+                    comp_postinstall_patches = comp_cfg['postinstallpatches']
                 if comp_patches:
                     self.cfg.update('patches', comp_patches)
+                    # Patch step is skipped so adding postinstall patches of components here is harmless
+                    self.cfg.update('patches', comp_postinstall_patches)
 
                 self.comp_instances.append((comp_cfg, comp_cfg.easyblock(comp_cfg, logfile=self.logfile)))
 
-            self.cfg.update('checksums', checksums_patches)
+            self.cfg.update('checksums', checksums_patches + orig_checksums)
 
         # restore general sanity checks if using component-specific sanity checks
         if self.cfg['sanity_check_components'] or self.cfg['sanity_check_all_components']: