diff --git a/debian/changelog b/debian/changelog
index b912cd734..26a60a85c 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -8,6 +8,7 @@ linux (4.12.2-1~exp1) UNRELEASED; urgency=medium
   [ Ben Hutchings ]
   * Add script to regenerate lockdown patch series from git
   * [rt] Disable until it is updated for 4.12 or later
+  * scripts/mod: Update modpost wrapper for 4.12
 
  -- Ben Hutchings <ben@decadent.org.uk>  Tue, 18 Jul 2017 00:04:07 +0100
 
diff --git a/debian/rules.d/scripts/mod/Makefile.real b/debian/rules.d/scripts/mod/Makefile.real
index 489ea4f7b..8b097f897 100644
--- a/debian/rules.d/scripts/mod/Makefile.real
+++ b/debian/rules.d/scripts/mod/Makefile.real
@@ -17,7 +17,7 @@ real-$(TYPE)/devicetable-offsets.s: $(SOURCEDIR)/devicetable-offsets.c
 
 real-$(TYPE)/devicetable-offsets.h: real-$(TYPE)/devicetable-offsets.s
 	echo >$@ "#define __DEVICEVTABLE_OFFSETS_H__"
-	sed -ne "/^->/{s:->#\(.*\):/* \1 */:; \
-		s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \
-		s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \
-		s:->::; p;}" $< >>$@
+	sed -ne "s:^[[:space:]]*\.ascii[[:space:]]*\"\(.*\)\".*:\1:; \
+		 /^->/{s:->#\(.*\):/* \1 */:; \
+		 s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \
+		 s:->::; p;}" $< >>$@