diff --git a/src/libstore/build.cc b/src/libstore/build.cc
index 1d611ffba..2466f9bd6 100644
--- a/src/libstore/build.cc
+++ b/src/libstore/build.cc
@@ -2491,6 +2491,10 @@ void setupSeccomp()
         seccomp_arch_add(ctx, SCMP_ARCH_X32) != 0)
         throw SysError("unable to add X32 seccomp architecture");
 
+    if (settings.thisSystem == "aarch64-linux" &&
+        seccomp_arch_add(ctx, SCMP_ARCH_ARM) != 0)
+        printError("unsable to add ARM seccomp architecture; this may result in spurious build failures if running 32-bit ARM processes.");
+
     /* Prevent builders from creating setuid/setgid binaries. */
     for (int perm : { S_ISUID, S_ISGID }) {
         if (seccomp_rule_add(ctx, SCMP_ACT_ERRNO(EPERM), SCMP_SYS(chmod), 1,