diff --git a/test/Transforms/LoopVectorize/multiple-strides-vectorization.ll b/test/Transforms/LoopVectorize/multiple-strides-vectorization.ll
index afbf41efbe4..adadbfc9e1d 100644
--- a/test/Transforms/LoopVectorize/multiple-strides-vectorization.ll
+++ b/test/Transforms/LoopVectorize/multiple-strides-vectorization.ll
@@ -1,4 +1,4 @@
-; RUN: opt -loop-vectorize -S < %s | FileCheck %s
+; RUN: opt -loop-vectorize -force-vector-width=4 -S < %s | FileCheck %s
 
 ; This is the test case from PR26314.
 ; When we were retrying dependence checking with memchecks only,