diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index b99d6d27d20..252f31a4989 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -5211,8 +5211,7 @@ module ts {
                 var otherKind = node.kind === SyntaxKind.GetAccessor ? SyntaxKind.SetAccessor : SyntaxKind.GetAccessor;
                 var otherAccessor = <AccessorDeclaration>getDeclarationOfKind(node.symbol, otherKind);
                 if (otherAccessor) {
-                    var visibilityFlags = NodeFlags.Private | NodeFlags.Public;
-                    if (((node.flags & visibilityFlags) !== (otherAccessor.flags & visibilityFlags))) {
+                    if (((node.flags & NodeFlags.AccessibilityModifier) !== (otherAccessor.flags & NodeFlags.AccessibilityModifier))) {
                         error(node.name, Diagnostics.Getter_and_setter_accessors_do_not_agree_in_visibility);
                     }
 
diff --git a/src/compiler/emitter.ts b/src/compiler/emitter.ts
index 317db201f3e..a2de8c19c47 100644
--- a/src/compiler/emitter.ts
+++ b/src/compiler/emitter.ts
@@ -1431,7 +1431,7 @@ module ts {
 
             function emitParameterPropertyAssignments(node: ConstructorDeclaration) {
                 forEach(node.parameters, param => {
-                    if (param.flags & (NodeFlags.Public | NodeFlags.Private)) {
+                    if (param.flags & NodeFlags.AccessibilityModifier) {
                         writeLine();
                         emitStart(param);
                         emitStart(param.name);
@@ -2630,7 +2630,7 @@ module ts {
                 function emitParameterProperties(constructorDeclaration: ConstructorDeclaration) {
                     if (constructorDeclaration) {
                         forEach(constructorDeclaration.parameters, param => {
-                            if (param.flags & (NodeFlags.Public | NodeFlags.Private)) {
+                            if (param.flags & NodeFlags.AccessibilityModifier) {
                                 emitPropertyDeclaration(param);
                             }
                         });
diff --git a/src/compiler/parser.ts b/src/compiler/parser.ts
index 25ca24ae61b..06c215412e5 100644
--- a/src/compiler/parser.ts
+++ b/src/compiler/parser.ts
@@ -3213,7 +3213,7 @@ module ts {
 
                 switch (modifierToken) {
                     case SyntaxKind.PublicKeyword:
-                        if (flags & NodeFlags.Private || flags & NodeFlags.Public) {
+                        if (flags & NodeFlags.AccessibilityModifier) {
                             grammarErrorAtPos(modifierStart, modifierLength, Diagnostics.Accessibility_modifier_already_seen);
                         }
                         else if (flags & NodeFlags.Static) {
@@ -3226,7 +3226,7 @@ module ts {
                         break;
 
                     case SyntaxKind.PrivateKeyword:
-                        if (flags & NodeFlags.Private || flags & NodeFlags.Public) {
+                        if (flags & NodeFlags.AccessibilityModifier) {
                             grammarErrorAtPos(modifierStart, modifierLength, Diagnostics.Accessibility_modifier_already_seen);
                         }
                         else if (flags & NodeFlags.Static) {