diff --git a/BUILD.gn b/BUILD.gn
index 0cd1ce1e36..8dac46da8e 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -1149,7 +1149,7 @@ template("run_mksnapshot") {
       # target toolchains.  The same host binary is used to generate both, so
       # mksnapshot needs to know which target OS to use at runtime.  It's weird,
       # but the target OS is really |current_os|.
-      "--ebt_os=$current_os",
+      "--target_os=$current_os",
     ]
 
     args += invoker.args
diff --git a/src/flag-definitions.h b/src/flag-definitions.h
index 560d645b84..ba7c328b6f 100644
--- a/src/flag-definitions.h
+++ b/src/flag-definitions.h
@@ -1169,7 +1169,7 @@ DEFINE_STRING(startup_src, nullptr,
               "Write V8 startup as C++ src. (mksnapshot only)")
 DEFINE_STRING(startup_blob, nullptr,
               "Write V8 startup blob file. (mksnapshot only)")
-DEFINE_STRING(ebt_os, nullptr, "EBT target OS. (mksnapshot only)")
+DEFINE_STRING(target_os, nullptr, "The mksnapshot target os. (mksnapshot only)")
 
 //
 // Minor mark compact collector flags.
diff --git a/src/snapshot/embedded-file-writer.cc b/src/snapshot/embedded-file-writer.cc
index 4266d798c4..191ebf7b7c 100644
--- a/src/snapshot/embedded-file-writer.cc
+++ b/src/snapshot/embedded-file-writer.cc
@@ -692,7 +692,7 @@ void PlatformDependentEmbeddedFileWriter::SectionData() {
 }
 
 void PlatformDependentEmbeddedFileWriter::SectionRoData() {
-  if (i::FLAG_ebt_os == std::string("win"))
+  if (i::FLAG_target_os == std::string("win"))
     fprintf(fp_, ".section .rdata\n");
   else
     fprintf(fp_, ".section .rodata\n");
@@ -778,7 +778,7 @@ void PlatformDependentEmbeddedFileWriter::DeclareFunctionBegin(
     const char* name) {
   DeclareLabel(name);
 
-  if (i::FLAG_ebt_os == std::string("win")) {
+  if (i::FLAG_target_os == std::string("win")) {
 #if defined(V8_TARGET_ARCH_ARM64)
     // Windows ARM64 assembly is in GAS syntax, but ".type" is invalid directive
     // in PE/COFF for Windows.