diff --git a/legacy/ecore/m4/ecore_check_options.m4 b/legacy/ecore/m4/ecore_check_options.m4
index fb7031a182..d20adcaeca 100644
--- a/legacy/ecore/m4/ecore_check_options.m4
+++ b/legacy/ecore/m4/ecore_check_options.m4
@@ -178,8 +178,8 @@ if test "x${_ecore_want_gnutls}" = "xyes" -o "x${_ecore_want_gnutls}" = "xauto"
    if test "x$_ecore_have_gnutls" = "xyes";then
      AC_PATH_GENERIC([libgcrypt], [], [_ecore_have_gnutls="yes"], [_ecore_have_gnutls="no"])
         if test "x${_ecore_have_gnutls}" = "xyes" ; then
-           TLS_CFLAGS+=" ${LIBGCRYPT_CFLAGS}"
-           TLS_LIBS+=" ${LIBGCRYPT_LIBS}"
+           TLS_CFLAGS="${TLS_CFLAGS} ${LIBGCRYPT_CFLAGS}"
+           TLS_LIBS="${TLS_LIBS} ${LIBGCRYPT_LIBS}"
         fi
    fi