diff --git a/debian/get_next.sh b/debian/get_next.sh
deleted file mode 100755
index 890fd45..0000000
--- a/debian/get_next.sh
+++ /dev/null
@@ -1,8 +0,0 @@
-#!/bin/sh
-
-SUPPORT=$(cat debian/linux_compat)
-MAJOR=$(echo $SUPPORT|cut -d'.' -f1)
-MINOR=$(echo $SUPPORT|cut -d'.' -f2)
-NEXT=$((MINOR+1))
-
-echo "${MAJOR}.${NEXT}"
diff --git a/debian/rules b/debian/rules
index b9db43b..0fc1a54 100755
--- a/debian/rules
+++ b/debian/rules
@@ -5,6 +5,7 @@ include /usr/share/dpkg/pkg-info.mk
 NAME := spl
 VERSION := $(DEB_VERSION_UPSTREAM)
 REVISION := $(shell echo $(DEB_VERSION) | cut -d- -f2)
+LINUX_NEXT := $(shell awk -F. '{print $1 "." $2+1}' debian/linux_compat)
 
 export DEB_BUILD_MAINT_OPTIONS = hardening=+all
 
@@ -23,7 +24,7 @@ pmodules = $(NAME)-modules-$(non_epoch_version)
 	dh $@ --with dkms,autoreconf --parallel
 
 override_dh_auto_configure:
-	sed "s/@LINUX_COMPAT@/linux-libc-dev \(<< $(shell debian/get_next.sh)~\)/" debian/control.in > debian/control
+	sed "s/@LINUX_COMPAT@/linux-libc-dev \(<< $(LINUX_NEXT)~\)/" debian/control.in > debian/control
 
 	@# Embed the downstream version in the module.
 	@sed \
@@ -62,7 +63,7 @@ override_dh_dkms:
 override_dh_auto_clean:
 	dh_auto_clean
 	@if test -e META.orig; then mv META.orig META; fi
-	sed "s/@LINUX_COMPAT@/linux-libc-dev \(<< $(shell debian/get_next.sh)\)/" debian/control.in > debian/control
+	sed "s/@LINUX_COMPAT@/linux-libc-dev \(<< $(LINUX_NEXT)~\)/" debian/control.in > debian/control
 
 # ------------