diff --git a/openmp/libomptarget/deviceRTLs/common/src/parallel.cu b/openmp/libomptarget/deviceRTLs/common/src/parallel.cu
--- a/openmp/libomptarget/deviceRTLs/common/src/parallel.cu
+++ b/openmp/libomptarget/deviceRTLs/common/src/parallel.cu
@@ -314,6 +314,7 @@
     void **GlobalArgs;
     __kmpc_begin_sharing_variables(&GlobalArgs, nargs);
     // TODO: faster memcpy?
+#pragma unroll
     for (int I = 0; I < nargs; I++)
       GlobalArgs[I] = args[I];
   }