diff --git a/boinc-client.spec b/boinc-client.spec
index 6ed3fcb..fba0b5b 100644
--- a/boinc-client.spec
+++ b/boinc-client.spec
@@ -96,7 +96,7 @@ ExcludeArch: ppc64
 %endif
 # EPEL8 webkit2gtk3 is missing for s390x, aarch64
 %if 0%{?el8}
-ExcludeArch: s390x, aarch64
+ExcludeArch: s390x aarch64
 %endif
 %description 
 The Berkeley Open Infrastructure for Network Computing (BOINC) is an open-