diff --git a/tests/baselines/reference/downlevelLetConst18.errors.txt b/tests/baselines/reference/downlevelLetConst18.errors.txt
index e1abafd86c4..5b91498f173 100644
--- a/tests/baselines/reference/downlevelLetConst18.errors.txt
+++ b/tests/baselines/reference/downlevelLetConst18.errors.txt
@@ -1,5 +1,5 @@
-tests/cases/compiler/downlevelLetConst18.ts(5,14): error TS1250: In ES5 or lower, function declarations are not allowed in block scope in strict mode.
-tests/cases/compiler/downlevelLetConst18.ts(9,14): error TS1250: In ES5 or lower, function declarations are not allowed in block scope in strict mode.
+tests/cases/compiler/downlevelLetConst18.ts(5,14): error TS1250: Function declarations are not allowed inside blocks in strict mode when targeting 'ES3' or 'ES5'.
+tests/cases/compiler/downlevelLetConst18.ts(9,14): error TS1250: Function declarations are not allowed inside blocks in strict mode when targeting 'ES3' or 'ES5'.
 
 
 ==== tests/cases/compiler/downlevelLetConst18.ts (2 errors) ====
@@ -9,13 +9,13 @@ tests/cases/compiler/downlevelLetConst18.ts(9,14): error TS1250: In ES5 or lower
     for (let x; ;) {
         function foo() { x };
                  ~~~
-!!! error TS1250: In ES5 or lower, function declarations are not allowed in block scope in strict mode.
+!!! error TS1250: Function declarations are not allowed inside blocks in strict mode when targeting 'ES3' or 'ES5'.
     }
     
     for (let x; ;) {
         function foo1() { x };
                  ~~~~
-!!! error TS1250: In ES5 or lower, function declarations are not allowed in block scope in strict mode.
+!!! error TS1250: Function declarations are not allowed inside blocks in strict mode when targeting 'ES3' or 'ES5'.
     }
     
     for (let x; ;) {
diff --git a/tests/baselines/reference/downlevelLetConst19.errors.txt b/tests/baselines/reference/downlevelLetConst19.errors.txt
index 03ad2dd4706..ef8583347bd 100644
--- a/tests/baselines/reference/downlevelLetConst19.errors.txt
+++ b/tests/baselines/reference/downlevelLetConst19.errors.txt
@@ -1,4 +1,4 @@
-tests/cases/compiler/downlevelLetConst19.ts(9,14): error TS1250: In ES5 or lower, function declarations are not allowed in block scope in strict mode.
+tests/cases/compiler/downlevelLetConst19.ts(9,14): error TS1250: Function declarations are not allowed inside blocks in strict mode when targeting 'ES3' or 'ES5'.
 
 
 ==== tests/cases/compiler/downlevelLetConst19.ts (1 errors) ====
@@ -12,7 +12,7 @@ tests/cases/compiler/downlevelLetConst19.ts(9,14): error TS1250: In ES5 or lower
     
         function b() {
                  ~
-!!! error TS1250: In ES5 or lower, function declarations are not allowed in block scope in strict mode.
+!!! error TS1250: Function declarations are not allowed inside blocks in strict mode when targeting 'ES3' or 'ES5'.
             {
                 let x;
                 use(x);