diff --git a/xmlada-2016-gprinstall.patch b/xmlada-2016-gprinstall.patch
deleted file mode 100644
index e134248..0000000
--- a/xmlada-2016-gprinstall.patch
+++ /dev/null
@@ -1,63 +0,0 @@
-diff --git a/unicode/xmlada_unicode.gpr b/unicode/xmlada_unicode.gpr
-index 8a5a2ac..290cfe6 100644
---- a/unicode/xmlada_unicode.gpr
-+++ b/unicode/xmlada_unicode.gpr
-@@ -37,4 +37,8 @@ project XmlAda_Unicode is
-    package Binder   renames Shared.Binder;
-    package Ide      renames Shared.Ide;
- 
-+   package Install is
-+       for Sources_Subdir use "./include/xmlada/" & Project'Library_Name;
-+   end Install;
-+
- end XmlAda_Unicode;
-diff --git a/dom/xmlada_dom.gpr b/dom/xmlada_dom.gpr
-index 5c156ab..f6d37f6 100644
---- a/dom/xmlada_dom.gpr
-+++ b/dom/xmlada_dom.gpr
-@@ -39,4 +39,7 @@ project XmlAda_Dom is
-    package Binder   renames Shared.Binder;
-    package Ide      renames Shared.Ide;
- 
-+   package Install is
-+       for Sources_Subdir use "./include/xmlada/" & Project'Library_Name;
-+   end Install;
- end XmlAda_Dom;
-diff --git a/input_sources/xmlada_input.gpr b/input_sources/xmlada_input.gpr
-index 7602590..329bdad 100644
---- a/input_sources/xmlada_input.gpr
-+++ b/input_sources/xmlada_input.gpr
-@@ -39,6 +39,7 @@ project XmlAda_Input is
-    package Ide      renames Shared.Ide;
- 
-    package Install is
-+      for Sources_Subdir use "./include/xmlada/" & Project'Library_Name;
-       for Artifacts ("share/doc/xmlada")
-         use ("../docs/_build/html/*", "../docs/_build/latex/XMLAda.pdf");
-       for Artifacts ("lib/gnat") use ("../distrib/xmlada.gpr");
-diff --git a/sax/xmlada_sax.gpr b/sax/xmlada_sax.gpr
-index f4d74ac..c146d79 100644
---- a/sax/xmlada_sax.gpr
-+++ b/sax/xmlada_sax.gpr
-@@ -39,4 +39,8 @@ project XmlAda_Sax is
-    package Binder   renames Shared.Binder;
-    package Ide      renames Shared.Ide;
- 
-+   package Install is
-+       for Sources_Subdir use "./include/xmlada/" & Project'Library_Name;
-+   end Install;
-+
- end XmlAda_Sax;
-diff --git a/schema/xmlada_schema.gpr b/schema/xmlada_schema.gpr
-index 4688847..62dee2f 100644
---- a/schema/xmlada_schema.gpr
-+++ b/schema/xmlada_schema.gpr
-@@ -40,4 +40,8 @@ project XmlAda_Schema is
-    package Binder   renames Shared.Binder;
-    package Ide      renames Shared.Ide;
- 
-+   package Install is
-+       for Sources_Subdir use "./include/xmlada/" & Project'Library_Name;
-+   end Install;
-+
- end XmlAda_Schema;