diff --git a/unit_tests/global.h b/unit_tests/global.h
index 9a1cca1025..b18640afdc 100644
--- a/unit_tests/global.h
+++ b/unit_tests/global.h
@@ -18,6 +18,9 @@ typedef uint32_t iomode_t;
 typedef uint32_t ioportid_t;
 typedef uint32_t ioportmask_t;
 
+#define DL_OUTPUT_BUFFER 200
+#define INTERMEDIATE_LOGGING_BUFFER_SIZE 100
+
 // just a stub implementation for unit tests
 #define EXPECTED_REMAINING_STACK 1
 #define getCurrentRemainingStack() (999999)