diff -Nru etherpuppet-0.3/debian/changelog etherpuppet-0.3/debian/changelog
--- etherpuppet-0.3/debian/changelog	2012-04-01 08:23:32.000000000 +0000
+++ etherpuppet-0.3/debian/changelog	2017-04-29 10:56:45.000000000 +0000
@@ -1,3 +1,10 @@
+etherpuppet (0.3-3) unstable; urgency=low
+
+  * Apply upstream fix to make package usable on systems with unsigned
+    char. Patch from Peter Michael Green. Closes: #861366.
+
+ -- Vincent Bernat <bernat@debian.org>  Sat, 29 Apr 2017 12:56:45 +0200
+
 etherpuppet (0.3-2) unstable; urgency=low
 
   * Fix "build-arch" target being empty. Closes: #666313.
diff -Nru etherpuppet-0.3/debian/patches/fix-char-signedness.patch etherpuppet-0.3/debian/patches/fix-char-signedness.patch
--- etherpuppet-0.3/debian/patches/fix-char-signedness.patch	1970-01-01 00:00:00.000000000 +0000
+++ etherpuppet-0.3/debian/patches/fix-char-signedness.patch	2017-04-29 10:56:45.000000000 +0000
@@ -0,0 +1,15 @@
+Description: Apply upstream fix to make package usable on systems with unsigned char.
+Author: Peter Michael Green <plugwash@raspbian.org>
+
+--- etherpuppet-0.3.orig/etherpuppet.c
++++ etherpuppet-0.3/etherpuppet.c
+@@ -227,7 +227,8 @@ int main(int argc, char *argv[])
+ 	struct sigaction sa;
+ 
+ 
+-	char c, *p, *ip, *manual_bpf_arg;
++        int c;
++	char *p, *ip, *manual_bpf_arg;
+ 	unsigned char buf[MTU+4];
+ 	char *iface = NULL;
+ 	fd_set readset;
diff -Nru etherpuppet-0.3/debian/patches/series etherpuppet-0.3/debian/patches/series
--- etherpuppet-0.3/debian/patches/series	1970-01-01 00:00:00.000000000 +0000
+++ etherpuppet-0.3/debian/patches/series	2017-04-29 10:56:45.000000000 +0000
@@ -0,0 +1 @@
+fix-char-signedness.patch