diff --git a/gnu/usr.bin/cc/cc_tools/auto-host.h b/gnu/usr.bin/cc/cc_tools/auto-host.h
index bb222307efde..a3a235cbe152 100644
--- a/gnu/usr.bin/cc/cc_tools/auto-host.h
+++ b/gnu/usr.bin/cc/cc_tools/auto-host.h
@@ -891,7 +891,7 @@
 
 /* Define if your PowerPC64 linker only needs function descriptor syms. */
 #ifndef USED_FOR_TARGET
-# ifdef __powerpc64_
+# ifdef __powerpc64__
 #  define HAVE_LD_NO_DOT_SYMS 1
 # endif
 #endif