diff --git a/desmume/src/frontend/interface/interface.cpp b/desmume/src/frontend/interface/interface.cpp
index 2437b3e56..9eb14f0cb 100644
--- a/desmume/src/frontend/interface/interface.cpp
+++ b/desmume/src/frontend/interface/interface.cpp
@@ -98,21 +98,21 @@ EXPORTED void desmume_set_language(u8 lang)
 EXPORTED int desmume_open(const char *filename)
 {
     int i;
-	if (rom_opened) {
-		NDS_FreeROM();
-	}
+    if (rom_opened) {
+        NDS_FreeROM();
+    }
     clear_savestates();
     i = NDS_LoadROM(filename);
-	if (i > 0) {
-		rom_opened = true;
-	}
+    if (i > 0) {
+        rom_opened = true;
+    }
     return i;
 }
 
 EXPORTED void desmume_close()
 {
-	NDS_FreeROM();
-	rom_opened = false;
+    NDS_FreeROM();
+    rom_opened = false;
 }
 
 EXPORTED void desmume_set_savetype(int type) {