diff --git a/Ports/.port_include.sh b/Ports/.port_include.sh
index a1b2498d18..55158e3275 100755
--- a/Ports/.port_include.sh
+++ b/Ports/.port_include.sh
@@ -138,7 +138,7 @@ fetch() {
 func_defined patch_internal || patch_internal() {
     # patch if it was not yet patched (applying patches multiple times doesn't work!)
     if [ -d patches ]; then
-        for filepath in patches/*; do
+        for filepath in patches/*.patch; do
             filename=$(basename $filepath)
             if [ ! -f "$workdir"/.${filename}_applied ]; then
                 run patch -p"$patchlevel" < "$filepath"
diff --git a/Ports/rsync/patches/config.sub.diff b/Ports/rsync/patches/config.sub.patch
similarity index 100%
rename from Ports/rsync/patches/config.sub.diff
rename to Ports/rsync/patches/config.sub.patch
diff --git a/Ports/stress-ng/patches/0001-build-sytem-patch.diff b/Ports/stress-ng/patches/0001-build-sytem-patch.patch
similarity index 100%
rename from Ports/stress-ng/patches/0001-build-sytem-patch.diff
rename to Ports/stress-ng/patches/0001-build-sytem-patch.patch
diff --git a/Ports/stress-ng/patches/0002-missing-types-and-functionality.diff b/Ports/stress-ng/patches/0002-missing-types-and-functionality.patch
similarity index 100%
rename from Ports/stress-ng/patches/0002-missing-types-and-functionality.diff
rename to Ports/stress-ng/patches/0002-missing-types-and-functionality.patch
diff --git a/Ports/stress-ng/patches/0003-missing-networking-functionality.diff b/Ports/stress-ng/patches/0003-missing-networking-functionality.patch
similarity index 100%
rename from Ports/stress-ng/patches/0003-missing-networking-functionality.diff
rename to Ports/stress-ng/patches/0003-missing-networking-functionality.patch
diff --git a/Ports/stress-ng/patches/0004-memory-related.diff b/Ports/stress-ng/patches/0004-memory-related.patch
similarity index 100%
rename from Ports/stress-ng/patches/0004-memory-related.diff
rename to Ports/stress-ng/patches/0004-memory-related.patch
diff --git a/Ports/stress-ng/patches/0005-misc-fixups.diff b/Ports/stress-ng/patches/0005-misc-fixups.patch
similarity index 100%
rename from Ports/stress-ng/patches/0005-misc-fixups.diff
rename to Ports/stress-ng/patches/0005-misc-fixups.patch