diff --git a/configure.ac b/configure.ac
index e48b3e0d6..6ad470c35 100644
--- a/configure.ac
+++ b/configure.ac
@@ -254,7 +254,7 @@ AS_CASE([$host_cpu],
     [p*pc32], [AS_CASE([$host_os],
               [linux*],  [fctx_arch_bin="ppc32_sysv_elf_gas"],
               [darwin*], [fctx_arch_bin="ppc32_sysv_macho_gas"])],
-    [p*pc64], [AS_CASE([$host_os],
+    [p*pc64*], [AS_CASE([$host_os],
               [linux*],  [fctx_arch_bin="ppc64_sysv_elf_gas"],
               [darwin*], [fctx_arch_bin="ppc64_sysv_macho_gas"])],
     [aarch64],[AS_CASE([$host_os],