diff --git a/llvm/test/tools/llvm-cov/mcdc-export-json.test b/llvm/test/tools/llvm-cov/mcdc-export-json.test
index c2cebf52db8c..a55d7400c51e 100644
--- a/llvm/test/tools/llvm-cov/mcdc-export-json.test
+++ b/llvm/test/tools/llvm-cov/mcdc-export-json.test
@@ -5,7 +5,7 @@
 // CHECK: 15,7,15,13,0,5,[true,true]
 // CHECK: 15,19,15,25,0,5,[true,false]
 // CHECK: 18,7,19,15,0,5,[true,true,false,true]
-// CHECK: "mcdc":{"count":12,"covered":10,"notcovered":2,"percent":83.333333333333343}
+// CHECK: "mcdc":{"count":12,"covered":10,"notcovered":2,"percent":83.3333333333333{{([[:digit:]]{2})}}}
 
 Instructions for regenerating the test: