diff --git a/include/openssl/safestack.h b/include/openssl/safestack.h
index e16732c4f1..9bd424ab28 100644
--- a/include/openssl/safestack.h
+++ b/include/openssl/safestack.h
@@ -87,7 +87,6 @@ extern "C" {
         ((1 ? p : (int (*)(const type * const *, const type * const *))0)))
 
 # define STACK_OF(type) struct stack_st_##type
-# define PREDECLARE_STACK_OF(type) STACK_OF(type);
 
 # define SKM_DECLARE_STACK_OF(t1, t2, t3) \
     STACK_OF(t1); \
diff --git a/util/mkstack.pl b/util/mkstack.pl
index 623fb9c77e..6fb577dba7 100755
--- a/util/mkstack.pl
+++ b/util/mkstack.pl
@@ -116,7 +116,6 @@ extern "C" {
         ((1 ? p : (int (*)(const type * const *, const type * const *))0)))
 
 # define STACK_OF(type) struct stack_st_##type
-# define PREDECLARE_STACK_OF(type) STACK_OF(type);
 
 # define SKM_DECLARE_STACK_OF(t1, t2, t3) \
     STACK_OF(t1); \