diff --git a/src/compiler/emitter.ts b/src/compiler/emitter.ts
index d2c96a11774..f08082d72c8 100644
--- a/src/compiler/emitter.ts
+++ b/src/compiler/emitter.ts
@@ -389,7 +389,7 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, ge
 
         return {
             emitSkipped,
-            declarationDiagnostics: emitterDiagnostics.getDiagnostics(),
+            diagnostics: emitterDiagnostics.getDiagnostics(),
             sourceMaps: sourceMapDataList
         };
 
diff --git a/src/compiler/program.ts b/src/compiler/program.ts
index 2b1a38d2084..d41f34df0b3 100644
--- a/src/compiler/program.ts
+++ b/src/compiler/program.ts
@@ -956,7 +956,7 @@ namespace ts {
             let declarationDiagnostics: Diagnostic[] = [];
 
             if (options.noEmit) {
-                return { declarationDiagnostics, sourceMaps: undefined, emitSkipped: true };
+                return { diagnostics: declarationDiagnostics, sourceMaps: undefined, emitSkipped: true };
             }
 
             // If the noEmitOnError flag is set, then check if we have any errors so far.  If so,
@@ -973,7 +973,7 @@ namespace ts {
                 }
 
                 if (diagnostics.length > 0 || declarationDiagnostics.length > 0) {
-                    return { declarationDiagnostics, sourceMaps: undefined, emitSkipped: true };
+                    return { diagnostics, sourceMaps: undefined, emitSkipped: true };
                 }
             }
 
diff --git a/src/compiler/tsc.ts b/src/compiler/tsc.ts
index 59212ed849b..8e08091bc77 100644
--- a/src/compiler/tsc.ts
+++ b/src/compiler/tsc.ts
@@ -592,7 +592,7 @@ namespace ts {
 
             // Otherwise, emit and report any errors we ran into.
             const emitOutput = program.emit();
-            diagnostics = diagnostics.concat(emitOutput.declarationDiagnostics);
+            diagnostics = diagnostics.concat(emitOutput.diagnostics);
 
             reportDiagnostics(sortAndDeduplicateDiagnostics(diagnostics), compilerHost);
 
diff --git a/src/compiler/types.ts b/src/compiler/types.ts
index e8fca86c4b2..58a151a2bc0 100644
--- a/src/compiler/types.ts
+++ b/src/compiler/types.ts
@@ -1680,7 +1680,8 @@ namespace ts {
 
     export interface EmitResult {
         emitSkipped: boolean;
-        /* @internal */ declarationDiagnostics: Diagnostic[];
+        /** Contains declaration emit diagnostics */
+        diagnostics: Diagnostic[];
         /* @internal */ sourceMaps: SourceMapData[];  // Array of sourceMapData if compiler emitted sourcemaps
     }
 
diff --git a/src/harness/projectsRunner.ts b/src/harness/projectsRunner.ts
index b8280ed24b9..96fcfedc6b4 100644
--- a/src/harness/projectsRunner.ts
+++ b/src/harness/projectsRunner.ts
@@ -127,7 +127,7 @@ class ProjectRunner extends RunnerBase {
             let errors = ts.getPreEmitDiagnostics(program);
 
             const emitResult = program.emit();
-            errors = ts.concatenate(errors, emitResult.declarationDiagnostics);
+            errors = ts.concatenate(errors, emitResult.diagnostics);
             const sourceMapData = emitResult.sourceMaps;
 
             // Clean up source map data that will be used in baselining