diff --git a/src/basic/generate-errno-list.sh b/src/basic/generate-errno-list.sh
index d2ce51e981..f756b2e020 100755
--- a/src/basic/generate-errno-list.sh
+++ b/src/basic/generate-errno-list.sh
@@ -3,5 +3,9 @@
 set -eu
 set -o pipefail
 
+# In kernel's arch/parisc/include/uapi/asm/errno.h, ECANCELLED and EREFUSED are defined as aliases of
+# ECANCELED and ECONNREFUSED, respectively. Let's drop them.
+
 ${1:?} -dM -include errno.h - </dev/null | \
+       grep -Ev '^#define[[:space:]]+(ECANCELLED|EREFUSED)' | \
        awk '/^#define[ \t]+E[^ _]+[ \t]+/ { print $2; }'