diff --git a/library/data_structures_[l,r]/linear_rmq.hpp b/library/data_structures_[l,r]/linear_rmq.hpp
index e1228a4b..0a66251e 100644
--- a/library/data_structures_[l,r]/linear_rmq.hpp
+++ b/library/data_structures_[l,r]/linear_rmq.hpp
@@ -36,9 +36,9 @@ template<class T, class F> struct linear_rmq {
   int idx(int l, int r) {
     if (unsigned j = in[l] ^ in[r]) {
       j = asc[l] & asc[r] & -bit_floor(j);
-      if (auto k = bit_floor(asc[l] ^ j))
+      if (int k = bit_floor(asc[l] ^ j))
         l = head[(in[l] & -k) | k];
-      if (auto k = bit_floor(asc[r] ^ j))
+      if (int k = bit_floor(asc[r] ^ j))
         r = head[(in[r] & -k) | k];
     }
     return cmp(a[l], a[r]) ? l : r;
diff --git a/library/trees/linear_lca.hpp b/library/trees/linear_lca.hpp
index 779439ad..a1b393e7 100644
--- a/library/trees/linear_lca.hpp
+++ b/library/trees/linear_lca.hpp
@@ -29,9 +29,9 @@ struct linear_lca {
   int lca(int u, int v) {
     if (unsigned j = in[u] ^ in[v]) {
       j = asc[u] & asc[v] & -bit_floor(j);
-      if (auto k = bit_floor(asc[u] ^ j))
+      if (int k = bit_floor(asc[u] ^ j))
         u = head[(in[u] & -k) | k];
-      if (auto k = bit_floor(asc[v] ^ j))
+      if (int k = bit_floor(asc[v] ^ j))
         v = head[(in[v] & -k) | k];
     }
     return d[u] < d[v] ? u : v;