diff --git a/src/ooxml/testcases/org/apache/poi/poifs/crypt/dsig/TestSignatureInfo.java b/src/ooxml/testcases/org/apache/poi/poifs/crypt/dsig/TestSignatureInfo.java
index 94fbf72fed..8b7242d6ef 100644
--- a/src/ooxml/testcases/org/apache/poi/poifs/crypt/dsig/TestSignatureInfo.java
+++ b/src/ooxml/testcases/org/apache/poi/poifs/crypt/dsig/TestSignatureInfo.java
@@ -1016,6 +1016,7 @@ public class TestSignatureInfo {
         final String alias = "Test";
         final char[] password = "test".toCharArray();
         File file = new File("build/test.pfx");
+        file.getParentFile().mkdir();
 
         KeyStore keystore = KeyStore.getInstance("PKCS12");