diff -Nru sks-1.1.1+dpkgv3/debian/changelog sks-1.1.1+dpkgv3/debian/changelog
--- sks-1.1.1+dpkgv3/debian/changelog	2012-07-02 13:13:02.000000000 +0000
+++ sks-1.1.1+dpkgv3/debian/changelog	2012-07-08 23:05:17.000000000 +0000
@@ -1,3 +1,10 @@
+sks (1.1.1+dpkgv3-7ubuntu0.2) precise-proposed; urgency=low
+
+  * Look for ^.i not ^ii in libdbX.Y-dev packages for BDB_VERSION. And assert
+    that we have a value (LP: #1021650)
+
+ -- Stefano Rivera <stefanor@ubuntu.com>  Fri, 06 Jul 2012 22:43:42 +0200
+
 sks (1.1.1+dpkgv3-7ubuntu0.1) precise-proposed; urgency=low
 
   * Provide OLD_BDB versions for Ubuntu, so that Berkeley DB upgrades will
diff -Nru sks-1.1.1+dpkgv3/debian/rules sks-1.1.1+dpkgv3/debian/rules
--- sks-1.1.1+dpkgv3/debian/rules	2011-05-31 13:55:29.000000000 +0000
+++ sks-1.1.1+dpkgv3/debian/rules	2012-07-06 20:43:28.000000000 +0000
@@ -12,7 +12,7 @@
 
 export DEB_BUILD_OPTIONS += $(if $(BYTECODE)," nostrip",)
 
-BDB_VERSION ?= $(shell LC_ALL=C dpkg-query -l 'libdb[45].[0-9]-dev' | grep ^ii | sed -e 's|.*\s\libdb\([45]\.[0-9]\)-dev\s.*|\1|')
+BDB_VERSION ?= $(shell LC_ALL=C dpkg-query -l 'libdb[45].[0-9]-dev' | grep ^.i | sed -e 's|.*\s\libdb\([45]\.[0-9]\)-dev\s.*|\1|')
 
 %:
 	dh  $@ --with=ocaml
@@ -25,6 +25,8 @@
 	$(MAKE) PREFIX="$(TMP)/usr" MANDIR="$(TMP)/usr/share/man" $(install)
 #	Debian specific
 	cp -a debian/debcfg/* debian/sks/etc/sks
+	# Check that we have a value for BDB_VERSION
+	[ -n "$(BDB_VERSION)" ]
 	echo $(BDB_VERSION) > debian/sks/usr/lib/sks/berkeley_db.txt
 
 # Use override_dh_* targets to customize this.