diff --git a/configure.ac b/configure.ac
index f2f02d1f9223e62ea10d831effe5e5f6e97a0229..d864f424fd0b0b8a29ae465a4f31e0dc8029c7b1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -123,7 +123,7 @@ if test -z "$LIBPOSTFIX"; then
   case "${host_os}" in
     *linux* )
       case "${host_cpu}" in
-        aarch64 | powerpc64 | powerpc64le | s390x | x86_64 | sparc64 | mips64* | riscv64 )
+        aarch64 | powerpc64 | powerpc64le | s390x | x86_64 | sparc64 | mips64* | riscv64 | e2k )
           LIBPOSTFIX="64"
           INTGOSIZE=64
           ;;