diff --git a/blocks/library/audio/index.js b/blocks/library/audio/index.js
index 74342580a46b3..8858e07c414dd 100644
--- a/blocks/library/audio/index.js
+++ b/blocks/library/audio/index.js
@@ -118,7 +118,7 @@ registerBlockType( 'core/audio', {
 						key="placeholder"
 						icon="media-audio"
 						label={ __( 'Audio' ) }
-						instructions={ __( 'Select an audio file from your library, or upload a new one:' ) }
+						instructions={ __( 'Select an audio file from your library, or upload a new one' ) }
 						className={ className }>
 						<form onSubmit={ onSelectUrl }>
 							<input
diff --git a/blocks/library/video/index.js b/blocks/library/video/index.js
index 522a4e9c405d5..472042a42106e 100644
--- a/blocks/library/video/index.js
+++ b/blocks/library/video/index.js
@@ -119,7 +119,7 @@ registerBlockType( 'core/video', {
 						key="placeholder"
 						icon="media-video"
 						label={ __( 'Video' ) }
-						instructions={ __( 'Select a video file from your library, or upload a new one:' ) }
+						instructions={ __( 'Select a video file from your library, or upload a new one' ) }
 						className={ className }>
 						<form onSubmit={ onSelectUrl }>
 							<input