diff --git a/bin/update-readmes.js b/bin/update-readmes.js
index df420007de397..4fb85e423b556 100755
--- a/bin/update-readmes.js
+++ b/bin/update-readmes.js
@@ -51,7 +51,7 @@ packages.forEach( ( entry ) => {
 		// Each target operates over the same file, so it needs to be processed synchronously,
 		// as to make sure the processes don't overwrite each other.
 		const { status, stderr } = spawnSync(
-			join( __dirname, '..', 'node_modules', '.bin', 'docgen' ),
+			join( __dirname, '..', 'node_modules', '.bin', 'docgen' ).replace( / /g, '\\ ' ),
 			[
 				join( 'packages', packageName, path ),
 				`--output packages/${ packageName }/README.md`,
diff --git a/docs/tool/update-data.js b/docs/tool/update-data.js
index 59a45ac4d599b..46263e788dfe0 100644
--- a/docs/tool/update-data.js
+++ b/docs/tool/update-data.js
@@ -33,7 +33,7 @@ modules.forEach( ( entry ) => {
 		// until docgen provides a way to update many tokens at once, we need to make sure
 		// the output file is updated before starting the second pass for the next token.
 		const { status, stderr } = spawnSync(
-			join( __dirname, '..', '..', 'node_modules', '.bin', 'docgen' ),
+			join( __dirname, '..', '..', 'node_modules', '.bin', 'docgen' ).replace( / /g, '\\ ' ),
 			[
 				target,
 				`--output docs/designers-developers/developers/data/data-${ namespace.replace( '/', '-' ) }.md`,