diff --git a/src/main/resources/de/thetaphi/forbiddenapis/signatures/jdk-unsafe-1.7.txt b/src/main/resources/de/thetaphi/forbiddenapis/signatures/jdk-unsafe-1.7.txt
index aa79569..b0d6214 100644
--- a/src/main/resources/de/thetaphi/forbiddenapis/signatures/jdk-unsafe-1.7.txt
+++ b/src/main/resources/de/thetaphi/forbiddenapis/signatures/jdk-unsafe-1.7.txt
@@ -16,6 +16,7 @@
 
 @defaultMessage Uses default charset
 java.io.ByteArrayOutputStream#toString()
+java.io.DataOutput#writeBytes(java.lang.String)
 java.io.FileReader#<init>(java.io.File)
 java.io.FileReader#<init>(java.io.FileDescriptor)
 java.io.FileReader#<init>(java.lang.String)