diff --git a/src/core/importer.cpp b/src/core/importer.cpp
index 85c9451..0f84283 100644
--- a/src/core/importer.cpp
+++ b/src/core/importer.cpp
@@ -117,11 +117,11 @@ void SDMCImporter::LoadSystemLanguage() {
             return;
         }
 
-        ConfigSavegame config;
-        if (!config.Init(std::move(data))) {
+        ConfigSavegame config_savegame;
+        if (!config_savegame.Init(std::move(data))) {
             return;
         }
-        system_language = static_cast<SMDH::TitleLanguage>(config.GetSystemLanguage());
+        system_language = static_cast<SMDH::TitleLanguage>(config_savegame.GetSystemLanguage());
         break;
     }
 }
@@ -352,7 +352,7 @@ static const std::regex title_regex{"[0-9a-f]{8}"};
 
 static std::string FindTMD(const std::string& path) {
     std::string title_metadata;
-    const bool ret = FileUtil::ForeachDirectoryEntry(
+    FileUtil::ForeachDirectoryEntry(
         nullptr, path,
         [&title_metadata](u64* /*num_entries_out*/, const std::string& directory,
                           const std::string& virtual_name) {
diff --git a/src/core/sdmc_decryptor.cpp b/src/core/sdmc_decryptor.cpp
index 208fd1c..fbcb75a 100644
--- a/src/core/sdmc_decryptor.cpp
+++ b/src/core/sdmc_decryptor.cpp
@@ -121,7 +121,8 @@ std::size_t SDMCFile::Read(char* data, std::size_t length) {
     return length_read;
 }
 
-std::size_t SDMCFile::Write(const char* data, std::size_t length) {
+std::size_t SDMCFile::Write([[maybe_unused]] const char* data,
+                            [[maybe_unused]] std::size_t length) {
     UNREACHABLE_MSG("Cannot write to a SDMCFile");
 }
 
diff --git a/src/frontend/helpers/dpi_aware_dialog.cpp b/src/frontend/helpers/dpi_aware_dialog.cpp
index e1d5f39..afa7f8f 100644
--- a/src/frontend/helpers/dpi_aware_dialog.cpp
+++ b/src/frontend/helpers/dpi_aware_dialog.cpp
@@ -51,8 +51,8 @@ void DPIAwareDialog::OnScreenChanged() {
     const double scaleX = window_handle->screen()->logicalDotsPerInchX() / 96.0;
     const double scaleY = window_handle->screen()->logicalDotsPerInchY() / 96.0;
     if (resized) {
-        const int new_width = static_cast<int>(scaleX * width() / previous_scaleX);
-        const int new_height = static_cast<int>(scaleY * height() / previous_scaleY);
+        const int new_width = static_cast<int>(scaleX * width() / prev_scaleX);
+        const int new_height = static_cast<int>(scaleY * height() / prev_scaleY);
         setMinimumSize(0, 0); // Enforce this resize
         resize(new_width, new_height);
     } else {
@@ -63,10 +63,10 @@ void DPIAwareDialog::OnScreenChanged() {
         resized = false; // This resize isn't user-initiated
     }
 
-    SetContentSizes(previous_width, previous_height);
-    previous_scaleX = scaleX;
-    previous_scaleY = scaleY;
-    previous_width = width();
-    previous_height = height();
+    SetContentSizes(prev_width, prev_height);
+    prev_scaleX = scaleX;
+    prev_scaleY = scaleY;
+    prev_width = width();
+    prev_height = height();
 }
 #endif
diff --git a/src/frontend/helpers/dpi_aware_dialog.h b/src/frontend/helpers/dpi_aware_dialog.h
index 4a0ed0c..fe6d5fd 100644
--- a/src/frontend/helpers/dpi_aware_dialog.h
+++ b/src/frontend/helpers/dpi_aware_dialog.h
@@ -16,7 +16,8 @@ protected:
 
     // Called with two zeroes to set up content sizes that are relative to dialog size. Also called
     // when screen is changed, to update those sizes.
-    virtual void SetContentSizes(int previous_width = 0, int previous_height = 0){};
+    virtual void SetContentSizes([[maybe_unused]] int previous_width = 0,
+                                 [[maybe_unused]] int previous_height = 0){};
 
 private:
     QWindow* window_handle{};
@@ -31,9 +32,9 @@ private:
     void OnScreenChanged();
 
     bool resized = false; // whether this dialog has been manually resized
-    double previous_scaleX{};
-    double previous_scaleY{};
-    int previous_width{};
-    int previous_height{};
+    double prev_scaleX{};
+    double prev_scaleY{};
+    int prev_width{};
+    int prev_height{};
 #endif
 };
diff --git a/src/frontend/import_dialog.cpp b/src/frontend/import_dialog.cpp
index e1bc56a..6868a4a 100644
--- a/src/frontend/import_dialog.cpp
+++ b/src/frontend/import_dialog.cpp
@@ -184,7 +184,7 @@ ImportDialog::ImportDialog(QWidget* parent, const Core::Config& config_)
 
 ImportDialog::~ImportDialog() = default;
 
-void ImportDialog::SetContentSizes(int previous_width, int previous_height) {
+void ImportDialog::SetContentSizes(int previous_width, [[maybe_unused]] int previous_height) {
     const int current_width = width();
     if (previous_width == 0) { // first time
         ui->main->setColumnWidth(0, current_width * 0.66);
@@ -345,7 +345,7 @@ void ImportDialog::InsertSecondLevelItem(std::size_t row, const Core::ContentSpe
         item->setCheckState(0, Qt::Unchecked);
     }
 
-    ui->main->invisibleRootItem()->child(row)->addChild(item);
+    ui->main->invisibleRootItem()->child(static_cast<int>(row))->addChild(item);
 }
 
 void ImportDialog::OnItemChanged(QTreeWidgetItem* item, int column) {
diff --git a/src/frontend/main.cpp b/src/frontend/main.cpp
index eb3ef4e..2e3e0b1 100644
--- a/src/frontend/main.cpp
+++ b/src/frontend/main.cpp
@@ -94,7 +94,7 @@ MainDialog::MainDialog(QWidget* parent)
 
 MainDialog::~MainDialog() = default;
 
-void MainDialog::SetContentSizes(int previous_width, int previous_height) {
+void MainDialog::SetContentSizes(int previous_width, [[maybe_unused]] int previous_height) {
     const int current_width = width();
     if (previous_width == 0) { // first time
         ui->main->setColumnWidth(0, 0.3 * current_width);
diff --git a/src/frontend/select_nand_dialog.cpp b/src/frontend/select_nand_dialog.cpp
index a619441..2bffce1 100644
--- a/src/frontend/select_nand_dialog.cpp
+++ b/src/frontend/select_nand_dialog.cpp
@@ -33,7 +33,7 @@ SelectNandDialog::SelectNandDialog(QWidget* parent,
         }
         connect(button, &QRadioButton::toggled, this, [this, i](bool checked) {
             if (checked) {
-                result = i;
+                result = static_cast<int>(i);
             }
         });
         ui->contentLayout->addWidget(button);