diff --git a/complex2.cpp b/complex2.cpp
index 86eb0e05..290fe83f 100644
--- a/complex2.cpp
+++ b/complex2.cpp
@@ -1275,7 +1275,7 @@ EX namespace dice {
         base_to_base = -h[2];
       else {
         ld lim = sphere ? 1 : 5;
-        base_to_base = binsearch(-lim, lim, [h, osphere] (ld d) {
+        base_to_base = binsearch(-lim, lim, [h] (ld d) {
           return (zpush(d) * h)[2] >= sin_auto(vid.depth);
           });
         }
diff --git a/monstermove.cpp b/monstermove.cpp
index 984216c8..085d93c4 100644
--- a/monstermove.cpp
+++ b/monstermove.cpp
@@ -674,7 +674,7 @@ EX void beastAttack(cell *c, bool player, bool targetdir) {
     if(c2->wall == waThumperOn) {
       cellwalker bull (c, d);
       int subdir = determinizeBullPush(bull);
-      auto mi = determinePush(bull, subdir, [c, c2] (movei mi) { return canPushThumperOn(mi, c); });
+      auto mi = determinePush(bull, subdir, [c] (movei mi) { return canPushThumperOn(mi, c); });
       if(mi.proper())
         pushThumper(mi);
       }
diff --git a/pcmove.cpp b/pcmove.cpp
index 385cd4d0..7d5bc2e2 100644
--- a/pcmove.cpp
+++ b/pcmove.cpp
@@ -630,7 +630,7 @@ bool pcmove::actual_move() {
     }
   
   if(c2->monst == moAnimatedDie) {
-    mip = determinePush(cwt, subdir, [c2] (movei mi) { return canPushThumperOn(mi, cwt.at); });
+    mip = determinePush(cwt, subdir, [] (movei mi) { return canPushThumperOn(mi, cwt.at); });
     if(mip.proper()) {
       auto tgt = roll_effect(mip, dice::data[c2]);
       if(tgt.happy() > 0) {
@@ -642,7 +642,7 @@ bool pcmove::actual_move() {
     }
 
   if(isPushable(c2->wall) && !c2->monst && !nonAdjacentPlayer(c2, cwt.at) && fmsMove) {
-    mip = determinePush(cwt, subdir, [c2] (movei mi) { return canPushThumperOn(mi, cwt.at); });
+    mip = determinePush(cwt, subdir, [] (movei mi) { return canPushThumperOn(mi, cwt.at); });
     if(mip.t) changes.ccell(mip.t);
     if(mip.d == NO_SPACE) {
       if(vmsg(miWALL)) addMessage(XLAT("No room to push %the1.", c2->wall));
@@ -980,7 +980,7 @@ bool pcmove::attack() {
   
   if(items[itCurseWeakness] || (isStunnable(c2->monst) && c2->hitpoints > 1)) {
     if(monsterPushable(c2))
-      mip = determinePush(cwt, subdir, [c2] (movei mi) { return passable(mi.t, mi.s, P_BLOW); });
+      mip = determinePush(cwt, subdir, [] (movei mi) { return passable(mi.t, mi.s, P_BLOW); });
     else
       mip.t = c2;
     if(mip.t) changes.ccell(mip.t);
diff --git a/shmup.cpp b/shmup.cpp
index e00e5e99..fa62a65a 100644
--- a/shmup.cpp
+++ b/shmup.cpp
@@ -1124,7 +1124,7 @@ void movePlayer(monster *m, int delta) {
           if(d<bestd) bestd=d, subdir = di;
           }
         pushmonsters();
-        auto mip = determinePush(cellwalker(c2, sd1)+wstep, subdir, [m, c2] (movei mi) { return canPushThumperOn(mi, m->base); });
+        auto mip = determinePush(cellwalker(c2, sd1)+wstep, subdir, [m] (movei mi) { return canPushThumperOn(mi, m->base); });
         visibleFor(300);
         if(!mip.proper()) go = false;
         else pushThumper(mip);