diff --git a/clang/test/Driver/flang/flang.f90 b/clang/test/Driver/flang/flang.f90
index 56c1ace6f860..9d47c7c90225 100644
--- a/clang/test/Driver/flang/flang.f90
+++ b/clang/test/Driver/flang/flang.f90
@@ -1,6 +1,6 @@
 ! Check that flang -fc1 is invoked when in --driver-mode=flang.
 
-! This is a copy of flang.F90 because the driver has logic in it which
+! This is a copy of flang_ucase.F90 because the driver has logic in it which
 ! differentiates between F90 and f90 files. Flang will not treat these files
 ! differently.
 
diff --git a/clang/test/Driver/flang/flang.F90 b/clang/test/Driver/flang/flang_ucase.F90
similarity index 98%
rename from clang/test/Driver/flang/flang.F90
rename to clang/test/Driver/flang/flang_ucase.F90
index 37553c7c2760..323afb21dccf 100644
--- a/clang/test/Driver/flang/flang.F90
+++ b/clang/test/Driver/flang/flang_ucase.F90
@@ -48,4 +48,4 @@
 ! CHECK-EMIT-OBJ-DAG: "-o" "{{[^"]*}}.o"
 
 ! Should end in the input file.
-! ALL: "{{.*}}flang.F90"{{$}}
+! ALL: "{{.*}}flang_ucase.F90"{{$}}