diff --git a/src/lib/commands/edit.c b/src/lib/commands/edit.c
index 894cd2c9..e13cf1c8 100644
--- a/src/lib/commands/edit.c
+++ b/src/lib/commands/edit.c
@@ -759,6 +759,11 @@ edit_unit(struct empobj *unit, char *key, char *p,
 	    report_god_takes("", unit_nameof(unit), unit->own);
 	    report_god_gives("", unit_nameof(unit), arg);
 	}
+	if (arg && unit->effic < mineff) {
+	    divine_unit_change_quiet(unit, "Efficiency", 1,
+				     "from %d to %d", unit->effic, mineff);
+	    unit->effic = mineff;
+	}
 	unit->own = arg;
 	break;
     case 'L':
diff --git a/tests/actofgod/actofgod.xdump b/tests/actofgod/actofgod.xdump
index 24d8d48d..b808384c 100644
--- a/tests/actofgod/actofgod.xdump
+++ b/tests/actofgod/actofgod.xdump
@@ -366,11 +366,11 @@ actor action victim times duration time
 0 44 3 1 0 0
 0 44 1 32 0 0
 0 43 2 5 0 0
-0 44 3 19 0 0
+0 44 3 22 0 0
 0 43 1 73 0 0
 0 42 1 4 0 0
 1 45 0 1 0 0
-0 43 3 30 0 0
+0 43 3 33 0 0
 0 44 2 6 0 0
 0 42 3 4 0 0
 0 43 4 2 0 0
@@ -505,6 +505,7 @@ timestamp owner type id x y
 0 3 3 0 1 -1
 0 3 3 1 1 -1
 0 3 3 2 1 -1
+0 0 3 4 1 -1
 /config
 config realm
 cnum realm xl xh yl yh
diff --git a/tests/actofgod/geninput.pl b/tests/actofgod/geninput.pl
index 2620c0fb..56bb4bd3 100755
--- a/tests/actofgod/geninput.pl
+++ b/tests/actofgod/geninput.pl
@@ -238,6 +238,7 @@ for my $ef ('ship', 'plane', 'land') {
     edit($ef, 1, 'O', $MAXNOC - 1);
     edit($ef, 1, 'O', $MAXNOC);
     edit($ef, 2, 'O', 2);
+    edit($ef, 4, 'O', 0, 'O', '3');
     # uid (copy)
     edit($ef, 3, 'U', 5, 'U', 3);
     edit($ef, 0, 'U', 0, 'U', -1);
diff --git a/tests/actofgod/journal.log b/tests/actofgod/journal.log
index 43a6a93a..a36565ee 100644
--- a/tests/actofgod/journal.log
+++ b/tests/actofgod/journal.log
@@ -860,6 +860,12 @@
     Play#0 command edit
     Play#0 output Play#0 1 Owner of cs   cargo ship (#2) changed from 3 (#3) to 2 (#2)
     Play#0 output Play#0 6 0 640
+    Play#0 input edit s 4 O 0 O 3
+    Play#0 command edit
+    Play#0 output Play#0 1 Owner of cs   cargo ship (#4) changed from 3 (#3) to POGO (#0)
+    Play#0 output Play#0 1 Owner of cs   cargo ship (#4) changed from POGO (#0) to 3 (#3)
+    Play#0 output Play#0 1 Efficiency of cs   cargo ship (#4) changed from 0 to 20
+    Play#0 output Play#0 6 0 640
     Play#0 input edit s 3 U 5 U 3
     Play#0 command edit
     Play#0 output Play#0 1 cs   cargo ship (#3) duplicated to (#5)
@@ -904,6 +910,12 @@
     Play#0 command edit
     Play#0 output Play#0 1 Owner of f1   Sopwith Camel #2 changed from 3 (#3) to 2 (#2)
     Play#0 output Play#0 6 0 640
+    Play#0 input edit p 4 O 0 O 3
+    Play#0 command edit
+    Play#0 output Play#0 1 Owner of f1   Sopwith Camel #4 changed from 3 (#3) to POGO (#0)
+    Play#0 output Play#0 1 Owner of f1   Sopwith Camel #4 changed from POGO (#0) to 3 (#3)
+    Play#0 output Play#0 1 Efficiency of f1   Sopwith Camel #4 changed from 0 to 10
+    Play#0 output Play#0 6 0 640
     Play#0 input edit p 3 U 5 U 3
     Play#0 command edit
     Play#0 output Play#0 1 f1   Sopwith Camel #3 duplicated to (#5)
@@ -948,6 +960,12 @@
     Play#0 command edit
     Play#0 output Play#0 1 Owner of sup  supply #2 changed from 3 (#3) to 2 (#2)
     Play#0 output Play#0 6 0 640
+    Play#0 input edit u 4 O 0 O 3
+    Play#0 command edit
+    Play#0 output Play#0 1 Owner of sup  supply #4 changed from 3 (#3) to POGO (#0)
+    Play#0 output Play#0 1 Owner of sup  supply #4 changed from POGO (#0) to 3 (#3)
+    Play#0 output Play#0 1 Efficiency of sup  supply #4 changed from 0 to 10
+    Play#0 output Play#0 6 0 640
     Play#0 input edit u 3 U 5 U 3
     Play#0 command edit
     Play#0 output Play#0 1 sup  supply #3 duplicated to (#5)
@@ -1767,6 +1785,8 @@
     Play#0 output Play#0 1 cs   cargo ship (#0) taken from you by an act of POGO!
     Play#0 output Play#0 1 cs   cargo ship (#1) taken from you by an act of POGO!
     Play#0 output Play#0 1 cs   cargo ship (#2) taken from you by an act of POGO!
+    Play#0 output Play#0 1 cs   cargo ship (#4) taken from you by an act of POGO!
+    Play#0 output Play#0 1 cs   cargo ship (#4) given to you by an act of POGO!
     Play#0 output Play#0 1 cs   cargo ship (#5) given to you by an act of POGO!
     Play#0 output Play#0 1 cs   cargo ship (#3) taken from you by an act of POGO!
     Play#0 output Play#0 1 cs   cargo ship (#3) given to you by an act of POGO!
@@ -1774,6 +1794,8 @@
     Play#0 output Play#0 1 f1   Sopwith Camel #0 taken from you by an act of POGO!
     Play#0 output Play#0 1 f1   Sopwith Camel #1 taken from you by an act of POGO!
     Play#0 output Play#0 1 f1   Sopwith Camel #2 taken from you by an act of POGO!
+    Play#0 output Play#0 1 f1   Sopwith Camel #4 taken from you by an act of POGO!
+    Play#0 output Play#0 1 f1   Sopwith Camel #4 given to you by an act of POGO!
     Play#0 output Play#0 1 f1   Sopwith Camel #5 given to you by an act of POGO!
     Play#0 output Play#0 1 f1   Sopwith Camel #3 taken from you by an act of POGO!
     Play#0 output Play#0 1 f1   Sopwith Camel #3 given to you by an act of POGO!
@@ -1781,6 +1803,8 @@
     Play#0 output Play#0 1 sup  supply #0 taken from you by an act of POGO!
     Play#0 output Play#0 1 sup  supply #1 taken from you by an act of POGO!
     Play#0 output Play#0 1 sup  supply #2 taken from you by an act of POGO!
+    Play#0 output Play#0 1 sup  supply #4 taken from you by an act of POGO!
+    Play#0 output Play#0 1 sup  supply #4 given to you by an act of POGO!
     Play#0 output Play#0 1 sup  supply #5 given to you by an act of POGO!
     Play#0 output Play#0 1 sup  supply #3 taken from you by an act of POGO!
     Play#0 output Play#0 1 sup  supply #3 given to you by an act of POGO!