diff --git a/adsbus/.gitignore b/adsbus/.gitignore
index 55c3eac..e4375ec 100644
--- a/adsbus/.gitignore
+++ b/adsbus/.gitignore
@@ -33,3 +33,6 @@
 
 # Binaries
 adsbus
+
+# Generated
+version.h
diff --git a/adsbus/Makefile b/adsbus/Makefile
index 61b62c4..b9953dd 100644
--- a/adsbus/Makefile
+++ b/adsbus/Makefile
@@ -24,6 +24,10 @@ clean:
 %.o: %.c *.h
 	$(COMP) -c $(CFLAGS) $< -o $@
 
+version.h:
+	echo "#define GIT_LAST_CHANGE \"$$(git log --format=%H -n 1)\"" > version.h
+	echo "#define GIT_LOCAL_CLEAN $$(git diff --exit-code > /dev/null && echo true || echo false)" >> version.h
+
 adsb.pb-c.c: ../proto/adsb.proto
 	protoc-c --c_out=./ --proto_path=$(dir $<) $<