diff --git a/IexMath/IexMathFpu.cpp b/IexMath/IexMathFpu.cpp
index bff948c..c45737f 100644
--- a/IexMath/IexMathFpu.cpp
+++ b/IexMath/IexMathFpu.cpp
@@ -264,6 +264,18 @@ restoreControlRegs (const ucontext_t & ucon, bool clearExceptions)
     setMxcsr (ucon.uc_mcontext.fpregs->mxcsr, clearExceptions);
 }
 
+#elif defined(__FreeBSD_kernel__)
+
+#include <machine/npx.h>
+
+inline void
+restoreControlRegs (const ucontext_t & ucon, bool clearExceptions)
+{
+    struct envxmm *ex = (struct envxmm *)(ucon.uc_mcontext.mc_fpstate);
+    setCw ((ex->en_cw & cwRestoreMask) | cwRestoreVal);
+    setMxcsr (ex->en_mxcsr, clearExceptions);
+}
+
 #else
 
 //
@@ -463,8 +475,9 @@ setFpExceptionHandler (FpExceptionHandler handler)
 	sigemptyset (&action.sa_mask);
 	action.sa_flags = SA_SIGINFO | SA_NOMASK;
 	action.sa_sigaction = (void (*) (int, siginfo_t *, void *)) catchSigFpe;
+#ifndef __FreeBSD_kernel__
 	action.sa_restorer = 0;
-
+#endif
 	sigaction (SIGFPE, &action, 0);
     }