diff --git a/src/template.c b/src/template.c
index d0e6f81..38c8f85 100644
--- a/src/template.c
+++ b/src/template.c
@@ -226,7 +226,7 @@ main(void)
 		return EXIT_FAILURE;
 	}
 
-	const size_t MAX = (PRODUCT + (BLOCK_SIZE - 1)) / BLOCK_SIZE;
+	const size_t MAX = (GEN_LENGTH + (BLOCK_SIZE - 1)) / BLOCK_SIZE;
 #endif
 
 	// * allocate heap for sample data