diff --git a/src/checker.cpp b/src/checker.cpp
index 116f275bc..f3e14eeba 100644
--- a/src/checker.cpp
+++ b/src/checker.cpp
@@ -4309,17 +4309,21 @@ gb_internal bool correct_single_type_alias(CheckerContext *c, Entity *e) {
 
 gb_internal bool correct_type_alias_in_scope_backwards(CheckerContext *c, Scope *s) {
 	bool correction = false;
-	u32 n = s->elements.count;
-	for (u32 i = n-1; i < n; i--) {
-		correction |= correct_single_type_alias(c, s->elements.entries[i].value);
+	for (u32 n = s->elements.count, i = n-1; i < n; i--) {
+		Entity *e = s->elements.entries[i].value;
+		if (e != nullptr) {
+			correction |= correct_single_type_alias(c, e);
+		}
 	}
 	return correction;
 }
 gb_internal bool correct_type_alias_in_scope_forwards(CheckerContext *c, Scope *s) {
 	bool correction = false;
-	u32 n = s->elements.count;
-	for (isize i = 0; i < n; i++) {
-		correction |= correct_single_type_alias(c, s->elements.entries[i].value);
+	for (auto const &entry : s->elements) {
+		Entity *e = entry.value;
+		if (e != nullptr) {
+			correction |= correct_single_type_alias(c, entry.value);
+		}
 	}
 	return correction;
 }
diff --git a/src/string_map.cpp b/src/string_map.cpp
index f8b86a950..894579a03 100644
--- a/src/string_map.cpp
+++ b/src/string_map.cpp
@@ -2,8 +2,8 @@ GB_STATIC_ASSERT(sizeof(MapIndex) == sizeof(u32));
 
 
 struct StringHashKey {
-	u32    hash;
 	String string;
+	u32    hash;
 
 	operator String() const noexcept {
 		return this->string;
@@ -329,11 +329,12 @@ gb_internal StringMapEntry<T> const *begin(StringMap<T> const &m) noexcept {
 
 
 template <typename T>
-gb_internal StringMapEntry<T> *end(StringMap<T> &m) {
+gb_internal StringMapEntry<T> *end(StringMap<T> &m) noexcept {
 	return m.entries + m.count;
 }
 
 template <typename T>
 gb_internal StringMapEntry<T> const *end(StringMap<T> const &m) noexcept {
 	return m.entries + m.count;
-}
\ No newline at end of file
+}
+
diff --git a/src/string_set.cpp b/src/string_set.cpp
index fb4640c20..a37d8ba80 100644
--- a/src/string_set.cpp
+++ b/src/string_set.cpp
@@ -208,7 +208,9 @@ gb_internal void string_set__erase(StringSet *s, MapFindResult fr) {
 	}
 	auto *entry = &s->entries[fr.entry_index];
 	*entry = s->entries[s->entries.count-1];
-	StringHashKey key = {entry->hash, entry->value};
+	StringHashKey key;
+	key.hash = entry->hash;
+	key.string = entry->value;
 	last = string_set__find(s, key);
 	if (last.entry_prev != MAP_SENTINEL) {
 		s->entries[last.entry_prev].next = fr.entry_index;