diff --git a/src/config.h b/src/config.h
index 07700bed..d98067c1 100644
--- a/src/config.h
+++ b/src/config.h
@@ -103,8 +103,7 @@
 #endif
 
 #if !defined(BYTE_ORDER) || \
-    (BYTE_ORDER != BIG_ENDIAN && BYTE_ORDER != LITTLE_ENDIAN && \
-    BYTE_ORDER != PDP_ENDIAN)
+    (BYTE_ORDER != BIG_ENDIAN && BYTE_ORDER != LITTLE_ENDIAN)
 	/* you must determine what the correct bit order is for
 	 * your compiler - the next line is an intentional error
 	 * which will force your compiles to bomb until you fix