diff --git a/Makefile.am b/Makefile.am
index a55ddf4d..4e58475b 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -2,6 +2,7 @@ SUBDIRS =	\
 	build	\
 	notify-sharp \
 	SparkleShare \
+	SparkleDiff \
 	data \
 	po
 
diff --git a/SparkleDiff/Makefile.am b/SparkleDiff/Makefile.am
new file mode 100644
index 00000000..0f90c96b
--- /dev/null
+++ b/SparkleDiff/Makefile.am
@@ -0,0 +1,10 @@
+ASSEMBLY = SparkleDiff
+TARGET = exe
+
+LINK = $(REF_SPARKLEDIFF)
+
+SOURCES = \
+$(top_srcdir)/SparkleShare/Defines.cs \
+SparkleDiff.cs
+
+include $(top_srcdir)/build/build.mk
diff --git a/build/build.environment.mk b/build/build.environment.mk
index 0c8fe3d8..b3c75395 100644
--- a/build/build.environment.mk
+++ b/build/build.environment.mk
@@ -34,6 +34,10 @@ REF_SPARKLESHARE = $(LINK_SYSTEM) $(LINK_GTK) $(LINK_DBUS) $(LINK_NOTIFY_SHARP_D
 LINK_SPARKLESHARE = -r:$(DIR_BIN)/SparkleShare.exe
 LINK_SPARKLESHARE_DEPS = $(REF_SPARKLESHARE) $(LINK_SPARKLESHARE)
 
+REF_SPARKLEDIFF = $(LINK_SYSTEM) $(LINK_GTK) $(LINK_DBUS) $(LINK_MONO_POSIX)
+LINK_SPARKLEDIFF = -r:$(DIR_BIN)/SparkleShare.exe
+LINK_SPARKLEDIFF_DEPS = $(REF_SPARKLEDIFF) $(LINK_SPARKLEDIFF)
+
 # Cute hack to replace a space with something
 colon:= :
 empty:=
diff --git a/configure.ac b/configure.ac
index 0e8f8f31..02d5bed3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -89,6 +89,8 @@ build/m4/shave/shave-libtool
 data/Makefile
 data/icons/Makefile
 notify-sharp/Makefile
+SparkleDiff/Makefile
+SparkleDiff/Defines.cs
 SparkleShare/sparkleshare
 SparkleShare/Defines.cs
 SparkleShare/AssemblyInfo.cs