diff --git a/package/libpjsip/Config.in b/package/libpjsip/Config.in
index 980fada3d5..727d2ec3d0 100644
--- a/package/libpjsip/Config.in
+++ b/package/libpjsip/Config.in
@@ -2,6 +2,7 @@ config BR2_PACKAGE_LIBPJSIP
 	bool "libpjsip"
 	depends on BR2_INSTALL_LIBSTDCPP
 	depends on BR2_TOOLCHAIN_HAS_THREADS
+	select BR2_PACKAGE_LIBSRTP
 	help
 	  PJSIP is a free and open source multimedia communication
 	  library written in C language implementing standard based
diff --git a/package/libpjsip/libpjsip.mk b/package/libpjsip/libpjsip.mk
index ee250f5b11..49abd744e5 100644
--- a/package/libpjsip/libpjsip.mk
+++ b/package/libpjsip/libpjsip.mk
@@ -7,6 +7,7 @@
 LIBPJSIP_VERSION = 2.4.5
 LIBPJSIP_SOURCE = pjproject-$(LIBPJSIP_VERSION).tar.bz2
 LIBPJSIP_SITE = http://www.pjsip.org/release/$(LIBPJSIP_VERSION)
+LIBPJSIP_DEPENDENCIES = libsrtp
 LIBPJSIP_LICENSE = GPLv2+
 LIBPJSIP_LICENSE_FILES = COPYING
 LIBPJSIP_INSTALL_STAGING = YES
@@ -22,7 +23,8 @@ LIBPJSIP_CONF_OPTS = \
 	--disable-speex-aec \
 	--disable-resample \
 	--disable-video \
-	--disable-opencore-amr
+	--disable-opencore-amr \
+	--with-external-srtp=$(STAGING_DIR)/usr
 
 ifeq ($(BR2_PACKAGE_OPENSSL),y)
 LIBPJSIP_DEPENDENCIES += openssl