diff --git a/AsyncDisplayKit/ASDisplayNode.mm b/AsyncDisplayKit/ASDisplayNode.mm
index 435e40ba92..215c4dce8f 100644
--- a/AsyncDisplayKit/ASDisplayNode.mm
+++ b/AsyncDisplayKit/ASDisplayNode.mm
@@ -542,7 +542,7 @@ static ASDisplayNodeMethodOverrides GetASDisplayNodeMethodOverrides(Class c)
     Ivar ivar = allMyIvars[i];
     const char *type = ivar_getTypeEncoding(ivar);
 
-    if (strcmp(type, @encode(id)) == 0) {
+    if (type != NULL && strcmp(type, @encode(id)) == 0) {
       // If it's `id` we have to include it just in case.
       resultIvars[resultCount] = ivar;
       resultCount += 1;
diff --git a/AsyncDisplayKit/Private/ASInternalHelpers.m b/AsyncDisplayKit/Private/ASInternalHelpers.m
index 4a78f14d65..d57f8ba35c 100644
--- a/AsyncDisplayKit/Private/ASInternalHelpers.m
+++ b/AsyncDisplayKit/Private/ASInternalHelpers.m
@@ -107,7 +107,7 @@ BOOL ASClassRequiresMainThreadDeallocation(Class class)
 Class _Nullable ASGetClassFromType(const char *type)
 {
   // Class types all start with @"
-  if (strncmp(type, "@\"", 2) != 0) {
+  if (type == NULL || strncmp(type, "@\"", 2) != 0) {
     return nil;
   }