diff --git a/cache-utils.h b/cache-utils.h
index 0b65907..7c3b282 100644
--- a/cache-utils.h
+++ b/cache-utils.h
@@ -1,7 +1,7 @@
 #ifndef QEMU_CACHE_UTILS_H
 #define QEMU_CACHE_UTILS_H
 
-#if defined(_ARCH_PPC)
+#if defined(_ARCH_PPC) && !defined(CONFIG_TCG_INTERPRETER)
 struct qemu_cache_conf {
     unsigned long dcache_bsize;
     unsigned long icache_bsize;