diff --git a/compiler-rt/test/asan/TestCases/Windows/coverage-basic.cc b/compiler-rt/test/asan/TestCases/Windows/coverage-basic.cc
index a249999ac2bf..44b499fcb4cd 100644
--- a/compiler-rt/test/asan/TestCases/Windows/coverage-basic.cc
+++ b/compiler-rt/test/asan/TestCases/Windows/coverage-basic.cc
@@ -1,7 +1,7 @@
 // RUN: rm -rf %T/coverage-basic
 // RUN: mkdir %T/coverage-basic && cd %T/coverage-basic
 // RUN: %clangxx_asan -fsanitize-coverage=func %s -o test.exe
-// RUN: env ASAN_OPTIONS=%ASAN_OPTIONS%:coverage=1 %run ./test.exe
+// RUN: env ASAN_OPTIONS=coverage=1 %run ./test.exe
 //
 // RUN: %sancov print *.sancov | FileCheck %s
 #include <stdio.h>
diff --git a/compiler-rt/test/asan/TestCases/Windows/dll_stack_use_after_return.cc b/compiler-rt/test/asan/TestCases/Windows/dll_stack_use_after_return.cc
index 1a6ff2afd9a9..6cd74c265b8f 100644
--- a/compiler-rt/test/asan/TestCases/Windows/dll_stack_use_after_return.cc
+++ b/compiler-rt/test/asan/TestCases/Windows/dll_stack_use_after_return.cc
@@ -1,6 +1,6 @@
 // RUN: %clang_cl_asan -O0 %p/dll_host.cc -Fe%t
 // RUN: %clang_cl_asan -LD -O0 %s -Fe%t.dll
-// RUN: env ASAN_OPTIONS=%ASAN_OPTIONS%:detect_stack_use_after_return=1 not %run %t %t.dll 2>&1 | FileCheck %s
+// RUN: env ASAN_OPTIONS=detect_stack_use_after_return=1 not %run %t %t.dll 2>&1 | FileCheck %s
 
 #include <malloc.h>
 
diff --git a/compiler-rt/test/asan/TestCases/Windows/report_globals_reload_dll.cc b/compiler-rt/test/asan/TestCases/Windows/report_globals_reload_dll.cc
index 182b0d22aa2c..8b050975aac1 100644
--- a/compiler-rt/test/asan/TestCases/Windows/report_globals_reload_dll.cc
+++ b/compiler-rt/test/asan/TestCases/Windows/report_globals_reload_dll.cc
@@ -1,7 +1,7 @@
 // Make sure we can handle reloading the same DLL multiple times.
 // RUN: %clang_cl_asan -LD -O0 -DDLL %s -Fe%t.dll
 // RUN: %clang_cl_asan -O0 -DEXE %s -Fe%te.exe
-// RUN: env ASAN_OPTIONS=%ASAN_OPTIONS%:report_globals=1 %run %te.exe %t.dll 2>&1 | FileCheck %s
+// RUN: env ASAN_OPTIONS=report_globals=1 %run %te.exe %t.dll 2>&1 | FileCheck %s
 
 #include <windows.h>
 #include <stdio.h>
diff --git a/compiler-rt/test/asan/TestCases/Windows/report_globals_vs_freelibrary.cc b/compiler-rt/test/asan/TestCases/Windows/report_globals_vs_freelibrary.cc
index e0eee4af7642..72bf36ad0be7 100644
--- a/compiler-rt/test/asan/TestCases/Windows/report_globals_vs_freelibrary.cc
+++ b/compiler-rt/test/asan/TestCases/Windows/report_globals_vs_freelibrary.cc
@@ -1,6 +1,6 @@
 // RUN: %clang_cl_asan -LD -O0 -DDLL %s -Fe%t.dll
 // RUN: %clang_cl_asan -O0 -DEXE %s -Fe%te.exe
-// RUN: env ASAN_OPTIONS=%ASAN_OPTIONS%:report_globals=2 %run %te.exe %t.dll 2>&1 | FileCheck %s
+// RUN: env ASAN_OPTIONS=report_globals=2 %run %te.exe %t.dll 2>&1 | FileCheck %s
 
 #include <windows.h>
 #include <stdio.h>
diff --git a/compiler-rt/test/asan/TestCases/Windows/stack_use_after_return.cc b/compiler-rt/test/asan/TestCases/Windows/stack_use_after_return.cc
index 282d3f2fb559..7955f2685308 100644
--- a/compiler-rt/test/asan/TestCases/Windows/stack_use_after_return.cc
+++ b/compiler-rt/test/asan/TestCases/Windows/stack_use_after_return.cc
@@ -1,5 +1,5 @@
 // RUN: %clang_cl_asan -O0 %s -Fe%t
-// RUN: env ASAN_OPTIONS=%ASAN_OPTIONS%:detect_stack_use_after_return=1 not %run %t 2>&1 | FileCheck %s
+// RUN: env ASAN_OPTIONS=detect_stack_use_after_return=1 not %run %t 2>&1 | FileCheck %s
 
 char *x;