diff --git a/test/Analysis/Dominators/2007-01-14-BreakCritEdges.ll b/test/Analysis/Dominators/2007-01-14-BreakCritEdges.ll
index a00433adbbf..0318a33ced5 100644
--- a/test/Analysis/Dominators/2007-01-14-BreakCritEdges.ll
+++ b/test/Analysis/Dominators/2007-01-14-BreakCritEdges.ll
@@ -1,4 +1,4 @@
-; RUN: llvm-as < %s | opt -break-crit-edges -domtree -disable-output
+; RUN: llvm-as < %s | opt -idom -break-crit-edges -domtree -disable-output
 ; PR1110
 
 	%struct.OggVorbis_File = type { i8*, i32, i64, i64, %struct.ogg_sync_state, i32, i64*, i64*, i32*, i64*, %struct.vorbis_info*, %struct.vorbis_comment*, i64, i32, i32, i32, double, double, %struct.ogg_stream_state, %struct.vorbis_dsp_state, %struct.vorbis_block, %struct.ov_callbacks }