diff --git a/configure.ac b/configure.ac
index 27a3830f..d2ada2fc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -387,7 +387,7 @@ case "$ssl_library" in
     gnutls)
 	AC_DEFINE(OPENCONNECT_GNUTLS, 1)
 	AC_DEFINE(DTLS_GNUTLS, 1)
-	AC_SUBST(SSL_LIBRARY, [gnutls])
+	AC_SUBST(SSL_DTLS_PC, [gnutls])
 	AC_SUBST(SSL_LIBS, ['$(GNUTLS_LIBS)'])
 	AC_SUBST(SSL_CFLAGS, ['$(GNUTLS_CFLAGS)'])
 	check_openssl_dtls=no
@@ -395,7 +395,7 @@ case "$ssl_library" in
     openssl)
 	AC_DEFINE(OPENCONNECT_OPENSSL, 1)
 	AC_DEFINE(DTLS_OPENSSL, 1)
-	AC_SUBST(SSL_LIBRARY, [openssl])
+	AC_SUBST(SSL_DTLS_PC, [openssl])
 	AC_SUBST(SSL_LIBS, ['$(OPENSSL_LIBS)'])
 	AC_SUBST(SSL_CFLAGS, ['$(OPENSSL_CFLAGS)'])
 	AC_SUBST(SYMVER_PRINT_ERR, ["openconnect_print_err_cb;"])
@@ -405,7 +405,7 @@ case "$ssl_library" in
 	# GnuTLS for TCP, OpenSSL for DTLS
 	AC_DEFINE(OPENCONNECT_GNUTLS, 1)
 	AC_DEFINE(DTLS_OPENSSL, 1)
-	AC_SUBST(SSL_LIBRARY, [gnutls])
+	AC_SUBST(SSL_DTLS_PC, [gnutls openssl])
 	AC_SUBST(SSL_LIBS, ['$(GNUTLS_LIBS)'])
 	AC_SUBST(SSL_CFLAGS, ['$(GNUTLS_CFLAGS)'])
 	AC_SUBST(DTLS_SSL_LIBS, ['$(OPENSSL_LIBS)'])
diff --git a/openconnect-internal.h b/openconnect-internal.h
index ca02cb6a..8ed13996 100644
--- a/openconnect-internal.h
+++ b/openconnect-internal.h
@@ -407,7 +407,7 @@ void check_cmd_fd(struct openconnect_info *vpninfo, fd_set *fds);
 int is_cancel_pending(struct openconnect_info *vpninfo, fd_set *fds);
 void poll_cmd_fd(struct openconnect_info *vpninfo, int timeout);
 
-/* ${SSL_LIBRARY}.c */
+/* {gnutls,openssl}.c */
 int openconnect_SSL_gets(struct openconnect_info *vpninfo, char *buf, size_t len);
 int openconnect_SSL_write(struct openconnect_info *vpninfo, char *buf, size_t len);
 int openconnect_SSL_read(struct openconnect_info *vpninfo, char *buf, size_t len);
diff --git a/openconnect.pc.in b/openconnect.pc.in
index db4cb80e..6930a8b6 100644
--- a/openconnect.pc.in
+++ b/openconnect.pc.in
@@ -7,7 +7,7 @@ includedir=@includedir@
 Name: openconnect
 Description: OpenConnect VPN client
 Version: @VERSION@
-Requires.private: @LIBPROXY_PC@ @ZLIB_PC@ @SSL_LIBRARY@ @P11KIT_PC@ @LIBSTOKEN_PC@ libxml-2.0
+Requires.private: @LIBPROXY_PC@ @ZLIB_PC@ @SSL_DTLS_PC@ @P11KIT_PC@ @LIBSTOKEN_PC@ @LIBOATH_PC@ libxml-2.0
 Libs: -L${libdir} -lopenconnect
 Libs.private: @LIBINTL@
 Cflags: -I${includedir}