diff --git a/src/Makefile.am b/src/Makefile.am
index 6212c74e1..f80c448a8 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -570,6 +570,7 @@ libpulsecommon_@PA_MAJORMINOR@_la_SOURCES = \
 		pulse/util.c pulse/util.h \
 		pulse/timeval.c pulse/timeval.h \
 		pulse/rtclock.c pulse/rtclock.h \
+		pulse/volume.c pulse/volume.h \
 		pulsecore/atomic.h \
 		pulsecore/authkey.c pulsecore/authkey.h \
 		pulsecore/conf-parser.c pulsecore/conf-parser.h \