diff --git a/Tests/COnly/foo.c b/Tests/COnly/foo.c
index b42bbfd1c..e4faf38a3 100644
--- a/Tests/COnly/foo.c
+++ b/Tests/COnly/foo.c
@@ -1 +1 @@
-const char* foo = "Foo";
+char* foo = "Foo";
diff --git a/Tests/COnly/foo.h b/Tests/COnly/foo.h
index 67c42a20c..ad4a9af0f 100644
--- a/Tests/COnly/foo.h
+++ b/Tests/COnly/foo.h
@@ -1 +1 @@
-extern const char* foo;
+extern char* foo;