diff --git a/debian/changelog b/debian/changelog
index e844043..6d76a40 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -6,9 +6,14 @@ nut (2.7.4-9) UNRELEASED; urgency=medium
 
   [ Arnaud Quette ]
   * debian/control, debian/rules, debian/libnutscan1.install,
-    debian/libnutscan-dev.install: distribute nut-scanner. (Closes: #921379)
+    debian/libnutscan-dev.install: distribute nut-scanner. (Closes: #921379
+    LP: #1814314)
 
- -- Arnaud Quette <aquette@debian.org>  Tue, 26 Feb 2019 13:34:07 +0100
+  [ Laurent Bigonville ]
+  * Add libltdl-dev to the build-dependencies and fix FTBFS when it is
+    installed (Closes: #831740)
+
+ -- Laurent Bigonville <bigon@debian.org>  Mon, 04 Feb 2019 16:25:36 +0100
 
 nut (2.7.4-8) unstable; urgency=medium
 
diff --git a/debian/control b/debian/control
index 2b8821e..6fb2e29 100644
--- a/debian/control
+++ b/debian/control
@@ -11,6 +11,7 @@ Build-Depends: autotools-dev,
                libfreeipmi-dev (>= 0.8.5) [!hurd-i386],
                libgd-dev | libgd2-xpm-dev | libgd2-noxpm-dev,
                libipmimonitoring-dev (>= 1.1.5-2) [!hurd-i386],
+               libltdl-dev,
                libneon27-gnutls-dev | libneon27-dev,
                libnss3-dev,
                libpowerman0-dev (>= 2.3.3),
diff --git a/debian/patches/0010-fix-nutscanner-ftbfs.patch b/debian/patches/0010-fix-nutscanner-ftbfs.patch
new file mode 100644
index 0000000..54b2615
--- /dev/null
+++ b/debian/patches/0010-fix-nutscanner-ftbfs.patch
@@ -0,0 +1,33 @@
+commit 5d98d5536699222bc93c58c1e6f6df43dc9bfcff
+Author: Arnaud Quette <arnaud.quette@free.fr>
+Date:   Thu Mar 10 14:41:40 2016 +0100
+
+    Fix nut-scanner compilation in some environments
+    
+    Following the commits 5187dab (common: add some string-related functions) and
+    e767df5 (common: consolidate some string-related functions), the build rules of
+    nut-scanner were not updated to also use str.c. Since the libcommon.la
+    dependency was still there, some environments managed to build cleanly, while
+    other are failing.  Update build dependencies to fix this situation
+
+diff --git a/tools/nut-scanner/Makefile.am b/tools/nut-scanner/Makefile.am
+index 558cb23b..db85c682 100644
+--- a/tools/nut-scanner/Makefile.am
++++ b/tools/nut-scanner/Makefile.am
+@@ -14,14 +14,14 @@ libnutscan_la_SOURCES = scan_nut.c scan_ipmi.c \
+ 			scan_avahi.c scan_eaton_serial.c nutscan-serial.c \
+ 			../../drivers/serial.c \
+ 			../../drivers/bcmxcp_ser.c \
+-			../../common/common.c
++			../../common/common.c ../../common/str.c
+ libnutscan_la_LIBADD = $(NETLIBS) $(LIBLTDL_LIBS)
+ libnutscan_la_LDFLAGS = $(SERLIBS) -version-info 1:0:0
+ libnutscan_la_CFLAGS = -I$(top_srcdir)/clients -I$(top_srcdir)/include $(LIBLTDL_CFLAGS) -I$(top_srcdir)/drivers
+ 
+ nut_scanner_SOURCES = nut-scanner.c
+ nut_scanner_CFLAGS = -I$(top_srcdir)/clients -I$(top_srcdir)/include
+-nut_scanner_LDADD = libnutscan.la ../../common/libcommon.la
++nut_scanner_LDADD = libnutscan.la
+ 
+ if WITH_SSL
+   libnutscan_la_CFLAGS += $(LIBSSL_CFLAGS)
diff --git a/debian/patches/series b/debian/patches/series
index 0b7915d..c981d6f 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -4,3 +4,4 @@
 0006-ups-conf-maxretry.patch
 0008-drop-w3c-icons.patch
 0009-fix-nutshutdown-install.patch
+0010-fix-nutscanner-ftbfs.patch