diff --git a/openmp/libomptarget/test/offloading/workshare_chunk.c b/openmp/libomptarget/test/offloading/workshare_chunk.c
index c2248547605be9..a8c60c0097791a 100644
--- a/openmp/libomptarget/test/offloading/workshare_chunk.c
+++ b/openmp/libomptarget/test/offloading/workshare_chunk.c
@@ -5,6 +5,8 @@
 // UNSUPPORTED: aarch64-unknown-linux-gnu-LTO
 // UNSUPPORTED: x86_64-pc-linux-gnu
 // UNSUPPORTED: x86_64-pc-linux-gnu-LTO
+// UNSUPPORTED: s390x-ibm-linux-gnu
+// UNSUPPORTED: s390x-ibm-linux-gnu-LTO
 
 // clang-format off