diff --git a/src/devices/cpu/i386/i386.h b/src/devices/cpu/i386/i386.h
index 85817a8afb4..6f2397a6f38 100644
--- a/src/devices/cpu/i386/i386.h
+++ b/src/devices/cpu/i386/i386.h
@@ -5,8 +5,13 @@
 #ifndef __I386INTF_H__
 #define __I386INTF_H__
 
+// SoftFloat 2 lacks an include guard
+#ifndef softfloat_h
+#define softfloat_h 1
 #include "softfloat/milieu.h"
 #include "softfloat/softfloat.h"
+#endif
+
 #include "debug/debugcpu.h"
 #include "divtlb.h"
 
diff --git a/src/devices/cpu/m68000/m68000.h b/src/devices/cpu/m68000/m68000.h
index 93b39448f6c..cf203e43ca1 100644
--- a/src/devices/cpu/m68000/m68000.h
+++ b/src/devices/cpu/m68000/m68000.h
@@ -7,9 +7,12 @@
 
 
 
-
+// SoftFloat 2 lacks an include guard
+#ifndef softfloat_h
+#define softfloat_h 1
 #include "softfloat/milieu.h"
 #include "softfloat/softfloat.h"
+#endif
 
 
 /* MMU constants */