diff --git a/desmume/src/armcpu.cpp b/desmume/src/armcpu.cpp
index a51946e7a..5492528b5 100644
--- a/desmume/src/armcpu.cpp
+++ b/desmume/src/armcpu.cpp
@@ -27,7 +27,7 @@
 #include "cp15.h"
 #include "bios.h"
 #include "debug.h"
-#include "Disassembler.cpp"
+#include "Disassembler.h"
 
 
 template<u32> static u32 armcpu_prefetch();