Index: include/clang/Basic/DiagnosticSemaKinds.td
===================================================================
--- include/clang/Basic/DiagnosticSemaKinds.td
+++ include/clang/Basic/DiagnosticSemaKinds.td
@@ -3681,7 +3681,7 @@
 def note_ovl_candidate_disabled_by_function_cond_attr : Note<
     "candidate disabled: %0">;
 def note_ovl_candidate_disabled_by_extension : Note<
-    "candidate unavailable as it requires OpenCL extension '%0' to be disabled">;
+    "candidate unavailable as it requires OpenCL extension '%0' to be enabled">;
 def err_addrof_function_disabled_by_enable_if_attr : Error<
     "cannot take address of function %0 because it has one or more "
     "non-tautological enable_if conditions">;
Index: test/SemaOpenCL/extension-begin.cl
===================================================================
--- test/SemaOpenCL/extension-begin.cl
+++ test/SemaOpenCL/extension-begin.cl
@@ -40,7 +40,7 @@
   PointerOfA test_A_pointer; // expected-error {{use of type 'PointerOfA' (aka 'const struct A *') requires my_ext extension to be enabled}}
   f(); // expected-error {{use of declaration 'f' requires my_ext extension to be enabled}}
   g(0); // expected-error {{no matching function for call to 'g'}}
-        // expected-note@extension-begin.h:18 {{candidate unavailable as it requires OpenCL extension 'my_ext' to be disabled}}
+        // expected-note@extension-begin.h:18 {{candidate unavailable as it requires OpenCL extension 'my_ext' to be enabled}}
         // expected-note@extension-begin.h:23 {{candidate function not viable: requires 0 arguments, but 1 was provided}}
 }