diff --git a/src/core/sal/Architecture.hpp b/src/core/sal/Architecture.hpp
index 01419379..2ccee29e 100644
--- a/src/core/sal/Architecture.hpp
+++ b/src/core/sal/Architecture.hpp
@@ -9,7 +9,7 @@
 #endif
 
 #ifdef BUILD_ARM
-#include "arm/ARMArchitecture.hpp"
+#include "arm/ArmArchitecture.hpp"
 #endif
 
 #endif
diff --git a/src/core/sal/CMakeLists.txt b/src/core/sal/CMakeLists.txt
index 2d565940..66f6a794 100644
--- a/src/core/sal/CMakeLists.txt
+++ b/src/core/sal/CMakeLists.txt
@@ -74,7 +74,6 @@ elseif(BUILD_PANDA)
 	if(BUILD_ARM)
 		set(SRCS ${SRCS}
 			panda/PandaArmCPU.cc
-			arm/ArmArchitecture.cc    #why is this necessary?
 		)
 	endif(BUILD_ARM)
 endif(BUILD_BOCHS)