diff --git a/Source/ASTextNode.mm b/Source/ASTextNode.mm
index 15bf4bf1a4..2ae61f0636 100644
--- a/Source/ASTextNode.mm
+++ b/Source/ASTextNode.mm
@@ -204,7 +204,14 @@ static ASTextKitRenderer *rendererForAttributes(ASTextKitAttributes attributes,
 }
 @dynamic placeholderEnabled;
 
-static NSArray *DefaultLinkAttributeNames = @[ NSLinkAttributeName ];
+static NSArray *DefaultLinkAttributeNames() {
+  static NSArray *names;
+  static dispatch_once_t onceToken;
+  dispatch_once(&onceToken, ^{
+    names = @[ NSLinkAttributeName ];
+  });
+  return names;
+}
 
 - (instancetype)init
 {
@@ -225,7 +232,7 @@ static NSArray *DefaultLinkAttributeNames = @[ NSLinkAttributeName ];
     self.opaque = NO;
     self.backgroundColor = [UIColor clearColor];
 
-    self.linkAttributeNames = DefaultLinkAttributeNames;
+    self.linkAttributeNames = DefaultLinkAttributeNames();
 
     // Accessibility
     self.isAccessibilityElement = YES;
diff --git a/Source/ASTextNode2.mm b/Source/ASTextNode2.mm
index 975843fff8..b5ddd8b2fe 100644
--- a/Source/ASTextNode2.mm
+++ b/Source/ASTextNode2.mm
@@ -179,7 +179,14 @@ static NSString *ASTextNodeTruncationTokenAttributeName = @"ASTextNodeTruncation
 }
 @dynamic placeholderEnabled;
 
-static NSArray *DefaultLinkAttributeNames = @[ NSLinkAttributeName ];
+static NSArray *DefaultLinkAttributeNames() {
+  static NSArray *names;
+  static dispatch_once_t onceToken;
+  dispatch_once(&onceToken, ^{
+    names = @[ NSLinkAttributeName ];
+  });
+  return names;
+}
 
 - (instancetype)init
 {
@@ -200,9 +207,9 @@ static NSArray *DefaultLinkAttributeNames = @[ NSLinkAttributeName ];
     // The common case is for a text node to be non-opaque and blended over some background.
     self.opaque = NO;
     self.backgroundColor = [UIColor clearColor];
-    
-    self.linkAttributeNames = DefaultLinkAttributeNames;
-    
+
+    self.linkAttributeNames = DefaultLinkAttributeNames();
+
     // Accessibility
     self.isAccessibilityElement = YES;
     self.accessibilityTraits = self.defaultAccessibilityTraits;