diff --git a/debian/patches/reproducible-build.patch b/debian/patches/reproducible-build.patch
new file mode 100644
index 0000000..87d30e4
--- /dev/null
+++ b/debian/patches/reproducible-build.patch
@@ -0,0 +1,14 @@
+Author: Reiner Herrmann <reiner@reiner-h.de>
+Description: Sort list of source files for deterministic linking order
+
+--- a/Makefile
++++ b/Makefile
+@@ -20,7 +20,7 @@
+ 
+ UNAME_S := $(shell uname -s 2>/dev/null || echo not)
+ 
+-SOURCES = $(wildcard src/*.c)
++SOURCES = $(sort $(wildcard src/*.c))
+ OBJECTS = $(SOURCES:.c=.o)
+ TARGET  = mdp
+ DESTDIR =
diff --git a/debian/patches/series b/debian/patches/series
new file mode 100644
index 0000000..55077d0
--- /dev/null
+++ b/debian/patches/series
@@ -0,0 +1 @@
+reproducible-build.patch