diff --git a/code/game/machinery/computer/dna_console.dm b/code/game/machinery/computer/dna_console.dm
index 4d7dcd8825..171f1f3c02 100644
--- a/code/game/machinery/computer/dna_console.dm
+++ b/code/game/machinery/computer/dna_console.dm
@@ -1,4 +1,6 @@
 #define INJECTOR_TIMEOUT 100
+#define REJUVENATORS_INJECT 15
+#define REJUVENATORS_MAX 90
 #define NUMBER_OF_BUFFERS 3
 #define SCRAMBLE_TIMEOUT 600
 #define JOKER_TIMEOUT 12000					//20 minutes