diff --git a/src/StaticPHP/Util/SourcePatcher.php b/src/StaticPHP/Util/SourcePatcher.php
index c12717c2..7b96a105 100644
--- a/src/StaticPHP/Util/SourcePatcher.php
+++ b/src/StaticPHP/Util/SourcePatcher.php
@@ -47,17 +47,14 @@ class SourcePatcher
         }
         $patch_cwd = FileSystem::convertPath($cwd);
         $patch_arg = $patch_str;
-        if (PHP_OS_FAMILY === 'Windows') {
-            $patch_arg = FileSystem::convertWinPathToMinGW($patch_arg);
-        }
 
         // Detect if patch is already applied (reverse detection)
         $detect_reverse = !$reverse;
         $cd_cmd = (PHP_OS_FAMILY === 'Windows' ? 'cd /d ' : 'cd ') . escapeshellarg($patch_cwd);
         $detect_cmd = $cd_cmd
             . ' && patch --dry-run -p1 -s -f'
-            . ' -i ' . escapeshellarg($patch_arg)
             . ($detect_reverse ? ' -R' : '')
+            . ' < ' . escapeshellarg($patch_arg)
             . ' > ' . (PHP_OS_FAMILY === 'Windows' ? 'NUL' : '/dev/null') . ' 2>&1';
         exec($detect_cmd, $output, $detect_status);
 
@@ -69,8 +66,8 @@ class SourcePatcher
         // Apply patch
         $apply_cmd = $cd_cmd
             . ' && patch -p1'
-            . ' -i ' . escapeshellarg($patch_arg)
-            . ($reverse ? ' -R' : '');
+            . ($reverse ? ' -R' : '')
+            . ' < ' . escapeshellarg($patch_arg);
 
         exec($apply_cmd, $apply_output, $apply_status);
         if ($apply_status !== 0) {