diff --git a/src/plugins/select/bluegene/bg_dynamic_block.c b/src/plugins/select/bluegene/bg_dynamic_block.c
index a66c996e116e0b209b75125590f4f06eccd93e89..8019c39de496b56225ef4c0278b5847d4e7b1e47 100644
--- a/src/plugins/select/bluegene/bg_dynamic_block.c
+++ b/src/plugins/select/bluegene/bg_dynamic_block.c
@@ -250,7 +250,7 @@ try_small_again:
 			break;
 #endif
 		default:
-			error("This size %d is unknown on this system", cnodes);
+			debug("This size %d is unknown on this system", cnodes);
 			goto finished;
 			break;
 		}