diff --git a/Makefile b/Makefile
index 97054e157..103cbfc2b 100644
--- a/Makefile
+++ b/Makefile
@@ -326,7 +326,7 @@ CppParser-clean:
 	$(MAKE) -C $(POCO_BASE)/CppParser clean
 	$(MAKE) -C $(POCO_BASE)/CppParser/testsuite clean
 
-PDF-libexec:  Foundation-libexec
+PDF-libexec:  Util-libexec XML-libexec JSON-libexec Foundation-libexec
 	$(MAKE) -C $(POCO_BASE)/PDF
 
 PDF-tests: PDF-libexec cppunit
diff --git a/PDF/dependencies b/PDF/dependencies
index 2e8175e4e..b8694eecd 100644
--- a/PDF/dependencies
+++ b/PDF/dependencies
@@ -1 +1,4 @@
 Foundation
+XML
+JSON
+Util