diff --git a/Makefile.am b/Makefile.am
index f58cc92b..d790a215 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -217,7 +217,8 @@ qmi_sources = drivers/qmimodem/qmi.h drivers/qmimodem/qmi.c \
 					drivers/qmimodem/wds.h \
 					drivers/qmimodem/pds.h \
 					drivers/qmimodem/common.h \
-					drivers/qmimodem/wda.h
+					drivers/qmimodem/wda.h \
+					drivers/qmimodem/voice.h
 
 builtin_modules += qmimodem
 builtin_sources += $(qmi_sources) \