diff --git a/src/file_find.cc b/src/file_find.cc
index 59c3f13..bc8363a 100644
--- a/src/file_find.cc
+++ b/src/file_find.cc
@@ -47,7 +47,7 @@ bool fileFindNext(DirectoryFileFindData* findData)
 // 0x4E63CC
 bool findFindClose(DirectoryFileFindData* findData)
 {
-#if defined(_MSC_VER)
+#if defined(_MSC_VER) || defined(__MINGW32__)
     FindClose(findData->hFind);
 #else
     if (closedir(findData->dir) != 0) {
diff --git a/src/mmx.cc b/src/mmx.cc
index 205bffb..27f9edc 100644
--- a/src/mmx.cc
+++ b/src/mmx.cc
@@ -9,6 +9,9 @@
 // 0x4E08A0
 bool mmxIsSupported()
 {
+#if defined(__MINGW32__)
+    return false;
+#else
     int v1;
 
     // TODO: There are other ways to determine MMX using FLAGS register.
@@ -22,6 +25,7 @@ bool mmxIsSupported()
     }
 
     return v1 != 0;
+#endif
 }
 
 // 0x4E0DB0