diff --git a/kf5-kalarmcal.spec b/kf5-kalarmcal.spec
index e453449..53b4b22 100644
--- a/kf5-kalarmcal.spec
+++ b/kf5-kalarmcal.spec
@@ -25,7 +25,7 @@ Source0:        http://download.kde.org/%{stable}/release-service/%{version}/src
 
 # libical (and thus kcalendarcore) not on all arches for RHEL8.
 %if 0%{?rhel} == 8
-ExclusiveArch: x86_64 ppc64le %{arm}
+ExclusiveArch: x86_64 ppc64le aarch64 %{arm}
 %endif
 
 BuildRequires:  extra-cmake-modules