diff --git a/build/top.mk b/build/top.mk
index ba880c21e8..90ddeea44d 100644
--- a/build/top.mk
+++ b/build/top.mk
@@ -119,6 +119,7 @@ AC_LDFLAGS = @LDFLAGS@
 AC_LIBS = @LIBS@
 
 KRB_LIBS = @KRB_LIBS@
+TLS_LIBS = @TLS_LIBS@
 MODULES_CPPFLAGS = @SLAPD_MODULES_CPPFLAGS@
 MODULES_LDFLAGS = @SLAPD_MODULES_LDFLAGS@
 PERL_CPPFLAGS = @SLAPD_PERL_CPPFLAGS@