--- src/iop/highlights.c	2019-10-20 14:39:07.000000000 +0200
+++ src/iop/highlights.c	2019-12-09 11:09:14.468776742 +0100
@@ -625,12 +625,14 @@
                                const dt_iop_roi_t *const roi_out, const float clip)
 {
   const uint8_t(*const xtrans)[6] = (const uint8_t(*const)[6])piece->pipe->dsc.xtrans;
-
+/* fails for aarch64 with: highlights.c:700:17: error: '*.LC2' not specified in enclosing 'parallel' */
+#if !defined(__aarch64__)
 #ifdef _OPENMP
 #pragma omp parallel for default(none) \
   dt_omp_firstprivate(clip, ivoid, ovoid, roi_in, roi_out, xtrans) \
   schedule(dynamic)
 #endif
+#endif
   for(int j = 0; j < roi_out->height; j++)
   {
     float *out = (float *)ovoid + (size_t)roi_out->width * j;