diff --git a/Makefile.in b/Makefile.in
index f6ee38c13166..63021c20aaac 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -30,9 +30,9 @@ runtest: test
 	test/roc_driver$(EXE) -v >/dev/null
 	test/replay_driver$(EXE) -v >/dev/null
 	test/dtls_srtp_driver$(EXE) >/dev/null
-	cd test; $(abspath $(srcdir))/test/rtpw_test.sh >/dev/null
+	cd test; $(abspath $(srcdir))/test/rtpw_test.sh -w $(abspath $(srcdir))/test/words.txt >/dev/null
 ifeq (1, $(USE_OPENSSL))
-	cd test; $(abspath $(srcdir))/test/rtpw_test_gcm.sh >/dev/null
+	cd test; $(abspath $(srcdir))/test/rtpw_test_gcm.sh -w $(abspath $(srcdir))/test/words.txt >/dev/null
 endif
 	@echo "libsrtp2 test applications passed."
 	$(MAKE) -C crypto runtest
diff --git a/test/rtpw.c b/test/rtpw.c
index 3b7ac6700b20..c1386528dc3d 100644
--- a/test/rtpw.c
+++ b/test/rtpw.c
@@ -8,7 +8,7 @@
  *
  * This app is a simple RTP application intended only for testing
  * libsrtp.  It reads one word at a time from words.txt (or
- * whatever file is specified as DICT_FILE), and sends one word out
+ * whatever file is specified as DICT_FILE or with -w), and sends one word out
  * each USEC_RATE microseconds.  Secure RTP protections can be
  * applied.  See the usage() function for more details.
  *
@@ -198,7 +198,7 @@ main (int argc, char *argv[]) {
 
   /* check args */
   while (1) {
-    c = getopt_s(argc, argv, "b:k:rsgt:ae:ld:");
+    c = getopt_s(argc, argv, "b:k:rsgt:ae:ld:w:");
     if (c == -1) {
       break;
     }
@@ -247,6 +247,9 @@ main (int argc, char *argv[]) {
     case 'l':
       do_list_mods = 1;
       break;
+	case 'w':
+		dictfile = optarg_s;
+		break;
     default:
       usage(argv[0]);
     }
@@ -640,8 +643,9 @@ usage(char *string) {
 	 "       -s act as rtp sender\n"
 	 "       -r act as rtp receiver\n"
 	 "       -l list debug modules\n"
-	 "       -d <debug> turn on debugging for module <debug>\n",
-	 string, string);
+	 "       -d <debug> turn on debugging for module <debug>\n"
+	 "       -w <wordsfile> use <wordsfile> for input, rather than %s\n",
+	 string, string, DICT_FILE);
   exit(1);
   
 }