diff --git a/src/dbridge.c b/src/dbridge.c
index 0d0570b96..05062fdcf 100644
--- a/src/dbridge.c
+++ b/src/dbridge.c
@@ -588,10 +588,10 @@ do_entity(struct entity *etmp)
                 if (e_inview) {
                     pline("%s crushed by the falling portcullis!",
                           E_phrase(etmp, "are"));
-                } else if (!Deaf) { 
+                } else if (!Deaf) {
                     Soundeffect(se_crushing_sound, 100);
                     You_hear("a crushing sound.");
-		}
+                }
                 e_died(etmp,
                        XKILL_NOCORPSE | (e_inview ? XKILL_GIVEMSG
                                                   : XKILL_NOMSG),
diff --git a/src/dig.c b/src/dig.c
index 78a881a4c..0bac89aa7 100644
--- a/src/dig.c
+++ b/src/dig.c
@@ -1321,7 +1321,7 @@ mdig_tunnel(struct monst *mtmp)
         if (Verbose(0, mdig_tunnel2) && !rn2(5)) {
             Soundeffect(se_crashing_rock, 75);
             You_hear("crashing rock.");
-	}
+        }
         if (*in_rooms(mtmp->mx, mtmp->my, SHOPBASE))
             add_damage(mtmp->mx, mtmp->my, 0L);
         if (gl.level.flags.is_maze_lev) {
diff --git a/src/dokick.c b/src/dokick.c
index c74653b7c..0f2ea9eb7 100644
--- a/src/dokick.c
+++ b/src/dokick.c
@@ -1327,7 +1327,7 @@ dokick(void)
                 } else {
                     pline("A %s ooze gushes up from the drain!",
                           hcolor(NH_BLACK));
-		}
+                }
                 (void) makemon(&mons[PM_BLACK_PUDDING], x, y, MM_NOMSG);
                 exercise(A_DEX, TRUE);
                 newsym(x, y);
diff --git a/src/mhitu.c b/src/mhitu.c
index d8e26bc98..b69154b1a 100644
--- a/src/mhitu.c
+++ b/src/mhitu.c
@@ -744,7 +744,7 @@ mattacku(register struct monst *mtmp)
                     } else {
                         if (is_whirly(mtmp->data)) {
                             Soundeffect(se_rushing_wind_noise, 60);
-			}
+                        }
                         You_hear("a %s nearby.",
                                  is_whirly(mtmp->data) ? "rushing noise"
                                                        : "splat");
diff --git a/src/mon.c b/src/mon.c
index 4fbc5c697..fa6f2db5f 100644
--- a/src/mon.c
+++ b/src/mon.c
@@ -1443,7 +1443,7 @@ meatcorpse(
             if (Verbose(2, meatcorpse1))
                 pline("%s eats %s!", Monnam(mtmp), otmpname);
         } else {
-            Soundeffect(se_masticating_sound, 50); 
+            Soundeffect(se_masticating_sound, 50);
             if (Verbose(2, meatcorpse2))
                 You_hear("a masticating sound.");
         }
@@ -3258,7 +3258,7 @@ xkilled(
         } else {
             Soundeffect(se_applause, 40);
             You_hear("the studio audience applaud!");
-	}
+        }
         if (!unique_corpstat(mdat)) {
             boolean mname = has_mgivenname(mtmp);
 
diff --git a/src/were.c b/src/were.c
index 6f8a139ee..7c507990f 100644
--- a/src/were.c
+++ b/src/were.c
@@ -31,9 +31,9 @@ were_change(struct monst *mon)
                     break;
                 }
                 if (howler) {
-                    Soundeffect(se_canine_howl, 50); 
+                    Soundeffect(se_canine_howl, 50);
                     You_hear("a %s howling at the moon.", howler);
-		}
+                }
             }
         }
     } else if (!rn2(30) || Protection_from_shape_changers) {
diff --git a/src/zap.c b/src/zap.c
index ebdd83f30..61a8aae3f 100644
--- a/src/zap.c
+++ b/src/zap.c
@@ -4816,7 +4816,7 @@ zap_over_floor(
                     newsym(x, y);
                 } else if (!lava) {
                     You_hear("a crackling sound.");
-		}
+                }
                 if (u_at(x, y)) {
                     if (u.uinwater) { /* not just `if (Underwater)' */
                         /* leave the no longer existent water */