diff --git a/llvm/tools/llvm-profdata/llvm-profdata.cpp b/llvm/tools/llvm-profdata/llvm-profdata.cpp
--- a/llvm/tools/llvm-profdata/llvm-profdata.cpp
+++ b/llvm/tools/llvm-profdata/llvm-profdata.cpp
@@ -1182,7 +1182,7 @@
       cl::values(clEnumVal(instr, "Instrumentation profile (default)"),
                  clEnumVal(sample, "Sample profile")));
   cl::opt<ProfileFormat> OutputFormat(
-      cl::desc("Format of output profile"), cl::init(PF_Binary),
+      cl::desc("Format of output profile"), cl::init(PF_Ext_Binary),
       cl::values(
           clEnumValN(PF_Binary, "binary", "Binary encoding (default)"),
           clEnumValN(PF_Ext_Binary, "extbinary", "Extensible binary encoding"),