diff --git a/src/3rdparty/squirrel/squirrel/squtils.h b/src/3rdparty/squirrel/squirrel/squtils.h
index 2c7a343638..87d0473a26 100644
--- a/src/3rdparty/squirrel/squirrel/squtils.h
+++ b/src/3rdparty/squirrel/squirrel/squtils.h
@@ -93,7 +93,7 @@ public:
 	{
 		_vals[idx].~T();
 		if(idx < (_size - 1)) {
-			memmove(static_cast<void *>(&_vals[idx]), &_vals[idx+1], sizeof(T) * (_size - (size_t)idx - 1));
+			std::move(&_vals[idx + 1], &_vals[_size], &_vals[idx]);
 		}
 		_size--;
 	}
diff --git a/src/safeguards.h b/src/safeguards.h
index 97c2bc6c45..c8bf2d2e0e 100644
--- a/src/safeguards.h
+++ b/src/safeguards.h
@@ -49,6 +49,7 @@
 
 #define memcmp SAFEGUARD_DO_NOT_USE_THIS_METHOD
 #define memcpy SAFEGUARD_DO_NOT_USE_THIS_METHOD
+#define memmove SAFEGUARD_DO_NOT_USE_THIS_METHOD
 #define memset SAFEGUARD_DO_NOT_USE_THIS_METHOD
 
 /* Use fgets instead. */
diff --git a/src/saveload/company_sl.cpp b/src/saveload/company_sl.cpp
index 2b80659d47..4beeca6a23 100644
--- a/src/saveload/company_sl.cpp
+++ b/src/saveload/company_sl.cpp
@@ -426,7 +426,7 @@ public:
 
 		if (IsSavegameVersionBefore(SLV_85)) {
 			/* We want to insert some liveries somewhere in between. This means some have to be moved. */
-			memmove(&c->livery[LS_FREIGHT_WAGON], &c->livery[LS_PASSENGER_WAGON_MONORAIL], (LS_END - LS_FREIGHT_WAGON) * sizeof(c->livery[0]));
+			std::move_backward(&c->livery[LS_FREIGHT_WAGON - 2], &c->livery[LS_END - 2], &c->livery[LS_END]);
 			c->livery[LS_PASSENGER_WAGON_MONORAIL] = c->livery[LS_MONORAIL];
 			c->livery[LS_PASSENGER_WAGON_MAGLEV]   = c->livery[LS_MAGLEV];
 		}
diff --git a/src/spritecache.cpp b/src/spritecache.cpp
index e196ad202b..64effb953a 100644
--- a/src/spritecache.cpp
+++ b/src/spritecache.cpp
@@ -803,7 +803,8 @@ static void CompactSpriteCache()
 			GetSpriteCache(i)->ptr = s->data; // Adjust sprite array entry
 			/* Swap this and the next block */
 			temp = *s;
-			memmove(s, next, next->size);
+			std::byte *p = reinterpret_cast<std::byte *>(next);
+			std::move(p, &p[next->size], reinterpret_cast<std::byte *>(s));
 			s = NextBlock(s);
 			*s = temp;