diff --git a/qa/pns/playground.cpp b/qa/pns/playground.cpp
index 5ba2223589..4c32af7b05 100644
--- a/qa/pns/playground.cpp
+++ b/qa/pns/playground.cpp
@@ -175,7 +175,7 @@ int playground_main_func( int argc, char* argv[] )
             vp.Merge( arc.BBox() );
     }
 
-    printf("Read %lu arcs\n", arcs.size() );
+    printf("Read %zu arcs\n", arcs.size() );
 
     LABEL_MANAGER labelMgr( frame->GetPanel()->GetGAL() );
     frame->GetPanel()->GetView()->SetViewport( BOX2D( vp.GetOrigin(), vp.GetSize() ) );
diff --git a/qa/pns/pns_log_viewer.cpp b/qa/pns/pns_log_viewer.cpp
index 3c1b30de2f..bc8ed73282 100644
--- a/qa/pns/pns_log_viewer.cpp
+++ b/qa/pns/pns_log_viewer.cpp
@@ -440,7 +440,7 @@ static BOARD* loadBoard( const std::string& filename )
     {
         brd = pi->Load( wxString( filename.c_str() ), nullptr, nullptr );
     }
-    catch( const IO_ERROR& ioe )
+    catch( const IO_ERROR& )
     {
         return nullptr;
     }