diff --git a/doc/fixes5-0-1.txt b/doc/fixes5-0-1.txt
index 96dba1c4d..80f9e20a3 100644
--- a/doc/fixes5-0-1.txt
+++ b/doc/fixes5-0-1.txt
@@ -56,6 +56,7 @@ if the hero has already been told that an engraving vanished, ensure that
 aklys path shouldn't be shown for locations that the hero cannot see
 keep the player better-informed about status of the tether on their weapon
 don't overflow svp.plname on restore (pr #1570 by chasonr)
+monsters (including pets) aren't scared of the Sokoban rolling boulder traps
 
 
 Platform- and/or Interface-Specific Fixes
diff --git a/src/trap.c b/src/trap.c
index 1804f7fc8..c9ab97563 100644
--- a/src/trap.c
+++ b/src/trap.c
@@ -1129,6 +1129,9 @@ m_harmless_trap(struct monst *mtmp, struct trap *ttmp)
     case LANDMINE:
         break;
     case ROLLING_BOULDER_TRAP:
+        /* the Sokoban rolling boulder traps are not dangerous */
+        if (In_sokoban(&u.uz))
+            return TRUE;
         break;
     case SLP_GAS_TRAP:
         if (resists_sleep(mtmp) || defended(mtmp, AD_SLEE))