diff --git a/src/hardware/Makefile.am b/src/hardware/Makefile.am
index 1f602e11..51851435 100644
--- a/src/hardware/Makefile.am
+++ b/src/hardware/Makefile.am
@@ -2,7 +2,7 @@ AM_CPPFLAGS = -I$(top_srcdir)/include
 
 SUBDIRS = serialport
 
-EXTRA_DIST = opl.cpp opl.h fmopl.c fmopl.h ymf262.h ymf262.c adlib.h
+EXTRA_DIST = opl.cpp opl.h fmopl.c fmopl.h ymf262.h ymf262.c adlib.h dbopl.h
 
 noinst_LIBRARIES = libhardware.a
 
@@ -10,6 +10,6 @@ libhardware_a_SOURCES = adlib.cpp dma.cpp gameblaster.cpp hardware.cpp iohandler
                         memory.cpp mixer.cpp pcspeaker.cpp pic.cpp sblaster.cpp tandy_sound.cpp timer.cpp \
 			vga.cpp vga_attr.cpp vga_crtc.cpp vga_dac.cpp vga_draw.cpp vga_gfx.cpp vga_other.cpp \
 			vga_memory.cpp vga_misc.cpp vga_seq.cpp vga_xga.cpp vga_s3.cpp vga_tseng.cpp vga_paradise.cpp \
-			cmos.cpp disney.cpp gus.cpp mpu401.cpp ipx.cpp ipxserver.cpp
+			cmos.cpp disney.cpp gus.cpp mpu401.cpp ipx.cpp ipxserver.cpp dbopl.cpp