diff --git a/src/Parser.ts b/src/Parser.ts
index 372d84439..45733890f 100644
--- a/src/Parser.ts
+++ b/src/Parser.ts
@@ -124,12 +124,12 @@ csiStateHandler['T'] = (handler, params, prefix) => {
 csiStateHandler['X'] = (handler, params, prefix) => handler.eraseChars(params);
 csiStateHandler['Z'] = (handler, params, prefix) => handler.cursorBackwardTab(params);
 csiStateHandler['`'] = (handler, params, prefix) => handler.charPosAbsolute(params);
-csiStateHandler['a'] = (handler, params, prefix) => handler.HPositionRelative(params);
+csiStateHandler['a'] = (handler, params, prefix) => handler.hPositionRelative(params);
 csiStateHandler['b'] = (handler, params, prefix) => handler.repeatPrecedingCharacter(params);
 csiStateHandler['c'] = (handler, params, prefix) => handler.sendDeviceAttributes(params);
 csiStateHandler['d'] = (handler, params, prefix) => handler.linePosAbsolute(params);
-csiStateHandler['e'] = (handler, params, prefix) => handler.VPositionRelative(params);
-csiStateHandler['f'] = (handler, params, prefix) => handler.HVPosition(params);
+csiStateHandler['e'] = (handler, params, prefix) => handler.vPositionRelative(params);
+csiStateHandler['f'] = (handler, params, prefix) => handler.hVPosition(params);
 csiStateHandler['g'] = (handler, params, prefix) => handler.tabClear(params);
 csiStateHandler['h'] = (handler, params, prefix) => handler.setMode(params);
 csiStateHandler['l'] = (handler, params, prefix) => handler.resetMode(params);
diff --git a/src/Types.ts b/src/Types.ts
index 15498ce1f..53501184c 100644
--- a/src/Types.ts
+++ b/src/Types.ts
@@ -139,12 +139,12 @@ export interface IInputHandler {
   /** CSI X */ eraseChars(params?: number[]): void;
   /** CSI Z */ cursorBackwardTab(params?: number[]): void;
   /** CSI ` */ charPosAbsolute(params?: number[]): void;
-  /** CSI a */ HPositionRelative(params?: number[]): void;
+  /** CSI a */ hPositionRelative(params?: number[]): void;
   /** CSI b */ repeatPrecedingCharacter(params?: number[]): void;
   /** CSI c */ sendDeviceAttributes(params?: number[]): void;
   /** CSI d */ linePosAbsolute(params?: number[]): void;
-  /** CSI e */ VPositionRelative(params?: number[]): void;
-  /** CSI f */ HVPosition(params?: number[]): void;
+  /** CSI e */ vPositionRelative(params?: number[]): void;
+  /** CSI f */ hVPosition(params?: number[]): void;
   /** CSI g */ tabClear(params?: number[]): void;
   /** CSI h */ setMode(params?: number[]): void;
   /** CSI l */ resetMode(params?: number[]): void;
diff --git a/src/renderer/atlas/StaticCharAtlas.ts b/src/renderer/atlas/StaticCharAtlas.ts
index b19074b8d..4a4189b7a 100644
--- a/src/renderer/atlas/StaticCharAtlas.ts
+++ b/src/renderer/atlas/StaticCharAtlas.ts
@@ -22,7 +22,7 @@ export default class StaticCharAtlas extends BaseCharAtlas {
     return canvas;
   }
 
-  public _doWarmUp(): void {
+  protected _doWarmUp(): void {
     const result = generateStaticCharAtlasTexture(window, this._canvasFactory, this._config);
     if (result instanceof HTMLCanvasElement) {
       this._texture = result;