diff --git a/test/e2e/framework/volume/fixtures.go b/test/e2e/framework/volume/fixtures.go
index cff195e6a92..c23e78c91c6 100644
--- a/test/e2e/framework/volume/fixtures.go
+++ b/test/e2e/framework/volume/fixtures.go
@@ -663,7 +663,7 @@ func InjectContent(f *framework.Framework, config TestConfig, fsGroup *int64, fs
 // generateWriteCmd is used by generateWriteBlockCmd and generateWriteFileCmd
 func generateWriteCmd(content, path string) []string {
 	var commands []string
-	commands = []string{"/bin/sh", "-c", "echo '" + content + "' > " + path}
+	commands = []string{"/bin/sh", "-c", "echo '" + content + "' > " + path + "; sync"}
 	return commands
 }