diff --git a/package/asterisk/asterisk.mk b/package/asterisk/asterisk.mk
index 4ed85743b0..6de498ed07 100644
--- a/package/asterisk/asterisk.mk
+++ b/package/asterisk/asterisk.mk
@@ -242,7 +242,8 @@ else
 ASTERISK_CONF_OPTS += --without-speex  --without-speexdsp
 endif
 
-ifeq ($(BR2_PACKAGE_LIBSRTP),y)
+# asterisk needs an openssl-enabled libsrtp
+ifeq ($(BR2_PACKAGE_LIBSRTP)$(BR2_PACKAGE_OPENSSL)x$(BR2_STATIC_LIBS),yyx)
 ASTERISK_DEPENDENCIES += libsrtp
 ASTERISK_CONF_OPTS += --with-srtp
 else