diff --git a/debian/tools/patchupdate.py b/debian/tools/patchupdate.py
index ef8c736e..5a66bb2b 100755
--- a/debian/tools/patchupdate.py
+++ b/debian/tools/patchupdate.py
@@ -224,6 +224,8 @@ def generate_makefile(patches, fp):
     fp.write("abort:\n")
     fp.write("\trm -f *.ok\n")
     fp.write("\n")
+    fp.write(".NOTPARALLEL:\n")
+    fp.write("\n")
 
     for i, patch in patches.iteritems():
         fp.write("# Patchset %s\n" % patch.name)
diff --git a/patches/Makefile b/patches/Makefile
index 78752f25..8492658d 100644
--- a/patches/Makefile
+++ b/patches/Makefile
@@ -34,6 +34,8 @@ install: $(PATCHLIST)
 abort:
 	rm -f *.ok
 
+.NOTPARALLEL:
+
 # Patchset 00-Commandline
 # |
 # | Included patches: