diff --git a/squirrel/sqvm.cpp b/squirrel/sqvm.cpp
index 329d731..e56f43c 100644
--- a/squirrel/sqvm.cpp
+++ b/squirrel/sqvm.cpp
@@ -4,6 +4,7 @@
 #include "sqpcheader.h"
 #include <math.h>
 #include <stdlib.h>
+#include <limits.h>
 #include "sqopcodes.h"
 #include "sqfuncproto.h"
 #include "sqvm.h"
@@ -61,10 +62,12 @@ bool SQVM::ARITH_OP(SQUnsignedInteger op,SQObjectPtr &trg,const SQObjectPtr &o1,
 				case '+': res = i1 + i2; break;
 				case '-': res = i1 - i2; break;
 				case '/': if(i2 == 0) { Raise_Error(_SC("division by zero")); return false; }
+					if((i1 == LONG_MIN)&&(i2 == -1)) { Raise_Error(_SC("overflow in division")); return false; }
 					res = i1 / i2; 
 					break;
 				case '*': res = i1 * i2; break;
 				case '%': if(i2 == 0) { Raise_Error(_SC("modulo by zero")); return false; }
+					if((i1 == LONG_MIN)&&(i2 == -1)) { Raise_Error(_SC("overflow in modulo")); return false; }
 					res = i1 % i2; 
 					break;
 				default: res = 0xDEADBEEF;