diff --git a/racket/src/racket/sconfig.h b/racket/src/racket/sconfig.h
index f80ef04bf5..1fe1aa4d14 100644
--- a/racket/src/racket/sconfig.h
+++ b/racket/src/racket/sconfig.h
@@ -472,6 +472,8 @@
 #  define FLUSH_SPARC_REGISTER_WINDOWS
 # elif defined(__arm__)
 #  define SCHEME_PLATFORM_LIBRARY_SUBPATH "arm-freebsd"
+# elif defined(__powerpc__)
+#  define SCHEME_PLATFORM_LIBRARY_SUBPATH "ppc-freebsd"
 # else
 #  error Unported platform.
 # endif