diff --git a/pykd/pykdver.h b/pykd/pykdver.h
index 7aa9c53..f09e6a5 100644
--- a/pykd/pykdver.h
+++ b/pykd/pykdver.h
@@ -2,7 +2,7 @@
 #define PYKD_VERSION_MAJOR      0
 #define PYKD_VERSION_MINOR      2
 #define PYKD_VERSION_SUBVERSION 0
-#define PYKD_VERSION_BUILDNO    19
+#define PYKD_VERSION_BUILDNO    20
 
 
 #define __VER_STR2__(x) #x
diff --git a/pykd/stkframe.cpp b/pykd/stkframe.cpp
index fe2d870..f66d594 100644
--- a/pykd/stkframe.cpp
+++ b/pykd/stkframe.cpp
@@ -408,7 +408,7 @@ python::object  StackFrame::getLocalByIndex( ULONG index )
     }
 
     if ( !symVar )
-        throw DbgException("local var not found");
+        throw PyException( PyExc_IndexError, "index out of range" );
 
     ULONG64 varAddr;
     const LocationType locType = static_cast<LocationType>(symVar->getLocType());
@@ -476,7 +476,7 @@ python::object StackFrame::getParamByIndex( ULONG index )
     }
 
     if ( !symVar )
-        throw DbgException("local var not found");
+        throw PyException( PyExc_IndexError, "index out of range" );
 
     ULONG64 varAddr;
     const LocationType locType = static_cast<LocationType>(symVar->getLocType());