diff --git a/code/__DEFINES/logging.dm b/code/__DEFINES/logging.dm
index 55131a26ed..8234059a36 100644
--- a/code/__DEFINES/logging.dm
+++ b/code/__DEFINES/logging.dm
@@ -16,6 +16,7 @@
 #define INVESTIGATE_EXONET			"exonet"
 #define INVESTIGATE_NANITES			"nanites"
 #define INVESTIGATE_CIRCUIT			"circuit"
+#define INVESTIGATE_RCD				"rcd"
 
 // Logging types for log_message()
 #define LOG_ATTACK		(1 << 0)
diff --git a/code/game/objects/items/RCD.dm b/code/game/objects/items/RCD.dm
index 38d64be99c..b2822ef856 100644
--- a/code/game/objects/items/RCD.dm
+++ b/code/game/objects/items/RCD.dm
@@ -414,10 +414,12 @@ RLD
 		return FALSE
 	if(do_after(user, rcd_results["delay"] * delay_mod, target = A))
 		if(checkResource(rcd_results["cost"], user))
+			var/atom/cached = A
 			if(A.rcd_act(user, src, rcd_results["mode"]))
 				useResource(rcd_results["cost"], user)
 				activate()
-				playsound(src.loc, 'sound/machines/click.ogg', 50, 1)
+				investigate_log("[user] used [src] on [cached] (now [A]) with cost [rcd_results["cost"]], delay [rcd_results["delay"]], mode [rcd_results["mode"]].", INVESTIGATE_RCD)
+				playsound(src, 'sound/machines/click.ogg', 50, 1)
 				return TRUE
 
 /obj/item/construction/rcd/Initialize()
diff --git a/code/modules/admin/admin_investigate.dm b/code/modules/admin/admin_investigate.dm
index 8e1926115f..ae6482abbd 100644
--- a/code/modules/admin/admin_investigate.dm
+++ b/code/modules/admin/admin_investigate.dm
@@ -4,7 +4,7 @@
 	var/F = file("[GLOB.log_directory]/[subject].html")
 	WRITE_FILE(F, "<small>[TIME_STAMP("hh:mm:ss", FALSE)] [REF(src)] ([x],[y],[z])</small> || [src] [message]<br>")
 
-/client/proc/investigate_show(subject in list("notes, memos, watchlist", INVESTIGATE_RESEARCH, INVESTIGATE_EXONET, INVESTIGATE_PORTAL, INVESTIGATE_SINGULO, INVESTIGATE_WIRES, INVESTIGATE_TELESCI, INVESTIGATE_GRAVITY, INVESTIGATE_RECORDS, INVESTIGATE_CARGO, INVESTIGATE_SUPERMATTER, INVESTIGATE_ATMOS, INVESTIGATE_EXPERIMENTOR, INVESTIGATE_BOTANY, INVESTIGATE_HALLUCINATIONS, INVESTIGATE_RADIATION, INVESTIGATE_CIRCUIT, INVESTIGATE_NANITES) )
+/client/proc/investigate_show(subject in list("notes, memos, watchlist", INVESTIGATE_RCD, INVESTIGATE_RESEARCH, INVESTIGATE_EXONET, INVESTIGATE_PORTAL, INVESTIGATE_SINGULO, INVESTIGATE_WIRES, INVESTIGATE_TELESCI, INVESTIGATE_GRAVITY, INVESTIGATE_RECORDS, INVESTIGATE_CARGO, INVESTIGATE_SUPERMATTER, INVESTIGATE_ATMOS, INVESTIGATE_EXPERIMENTOR, INVESTIGATE_BOTANY, INVESTIGATE_HALLUCINATIONS, INVESTIGATE_RADIATION, INVESTIGATE_CIRCUIT, INVESTIGATE_NANITES) )
 	set name = "Investigate"
 	set category = "Admin"
 	if(!holder)