diff --git a/configure.ac b/configure.ac
--- a/configure.ac
+++ b/configure.ac
@@ -48,7 +48,7 @@ AM_CONDITIONAL([ENABLE_SERVER],
 
 dnl package dependencies:
 
-PKG_CHECK_MODULES([DISTLIBS], [libconfuse >= 2.5 libcurl libxml-2.0 liblist >= 2.3.1 libarchive >= 2.8.0])
+PKG_CHECK_MODULES([DISTLIBS], [libconfuse >= 2.5 libcurl libxml-2.0 liblist >= 2.3.1 libarchive >= 2.8.0 libcrypto])
 AX_LIB_MYSQL
 AS_IF( [test "x${MYSQL_VERSION}" = "x"],
 	[ AC_MSG_ERROR([I need mysql]) ] )