diff --git a/src/pcre2_jit_misc.c b/src/pcre2_jit_misc.c
index d532df9..e57afad 100644
--- a/src/pcre2_jit_misc.c
+++ b/src/pcre2_jit_misc.c
@@ -135,7 +135,7 @@ return NULL;
 
 pcre2_jit_stack *jit_stack;
 
-if (startsize == 0 || maxsize == 0 || maxsize > PCRE2_SIZE_MAX - STACK_GROWTH_RATE)
+if (startsize == 0 || maxsize == 0 || maxsize > SIZE_MAX - STACK_GROWTH_RATE)
   return NULL;
 if (startsize > maxsize)
   startsize = maxsize;