diff --git a/src/renderers/common/Renderer.js b/src/renderers/common/Renderer.js
index 94118572f5680a..3f50f564257569 100644
--- a/src/renderers/common/Renderer.js
+++ b/src/renderers/common/Renderer.js
@@ -2330,7 +2330,7 @@ class Renderer {
 
 		if ( this._initialized === false ) {
 
-			throw new Error( 'THREE.Renderer: .clear() called before the backend is initialized. Use "await renderer.init();" before before using this method.' );
+			throw new Error( 'THREE.Renderer: .clear() called before the backend is initialized. Use "await renderer.init();" before using this method.' );
 
 		}
 
@@ -2903,7 +2903,7 @@ class Renderer {
 
 		if ( this._initialized === false ) {
 
-			throw new Error( 'THREE.Renderer: .hasFeature() called before the backend is initialized. Use "await renderer.init();" before before using this method.' );
+			throw new Error( 'THREE.Renderer: .hasFeature() called before the backend is initialized. Use "await renderer.init();" before using this method.' );
 
 		}
 
@@ -2953,7 +2953,7 @@ class Renderer {
 
 		if ( this._initialized === false ) {
 
-			throw new Error( 'THREE.Renderer: .initTexture() called before the backend is initialized. Use "await renderer.init();" before before using this method.' );
+			throw new Error( 'THREE.Renderer: .initTexture() called before the backend is initialized. Use "await renderer.init();" before using this method.' );
 
 		}
 
@@ -2970,7 +2970,7 @@ class Renderer {
 
 		if ( this._initialized === false ) {
 
-			throw new Error( 'THREE.Renderer: .initRenderTarget() called before the backend is initialized. Use "await renderer.init();" before before using this method.' );
+			throw new Error( 'THREE.Renderer: .initRenderTarget() called before the backend is initialized. Use "await renderer.init();" before using this method.' );
 
 		}
 
diff --git a/src/renderers/common/extras/PMREMGenerator.js b/src/renderers/common/extras/PMREMGenerator.js
index 4fab9abf696a3c..27df07dd99b46a 100644
--- a/src/renderers/common/extras/PMREMGenerator.js
+++ b/src/renderers/common/extras/PMREMGenerator.js
@@ -146,7 +146,7 @@ class PMREMGenerator {
 
 		if ( this._hasInitialized === false ) {
 
-			throw new Error( 'THREE.PMREMGenerator: .fromScene() called before the backend is initialized. Use "await renderer.init();" before before using this method.' );
+			throw new Error( 'THREE.PMREMGenerator: .fromScene() called before the backend is initialized. Use "await renderer.init();" before using this method.' );
 
 		}
 
@@ -218,7 +218,7 @@ class PMREMGenerator {
 
 		if ( this._hasInitialized === false ) {
 
-			throw new Error( 'THREE.PMREMGenerator: .fromEquirectangular() called before the backend is initialized. Use "await renderer.init();" before before using this method.' );
+			throw new Error( 'THREE.PMREMGenerator: .fromEquirectangular() called before the backend is initialized. Use "await renderer.init();" before using this method.' );
 
 		}
 
@@ -262,7 +262,7 @@ class PMREMGenerator {
 
 		if ( this._hasInitialized === false ) {
 
-			throw new Error( 'THREE.PMREMGenerator: .fromCubemap() called before the backend is initialized. Use "await renderer.init();" before before using this method.' );
+			throw new Error( 'THREE.PMREMGenerator: .fromCubemap() called before the backend is initialized. Use "await renderer.init();" before using this method.' );
 
 		}