diff --git a/bindings/dotnet/examples/Df.cs b/bindings/dotnet/examples/Df.cs
index 8860776b..2d4b49fe 100644
--- a/bindings/dotnet/examples/Df.cs
+++ b/bindings/dotnet/examples/Df.cs
@@ -21,7 +21,7 @@ public class Df {
                 avail = usage.Avail;
                 total = usage.Total;
                 pct = (ulong)(usage.UsePercent * 100);
-            } catch (ApplicationException) {
+            } catch (SigarException) {
                 used = avail = total = pct = 0;
                 continue;
             }
diff --git a/bindings/dotnet/examples/Ifconfig.cs b/bindings/dotnet/examples/Ifconfig.cs
index 24559b5a..4eed8e1a 100644
--- a/bindings/dotnet/examples/Ifconfig.cs
+++ b/bindings/dotnet/examples/Ifconfig.cs
@@ -74,7 +74,7 @@ public class Ifconfig {
                     "  " +
                     "TX bytes:" + txBytes + 
                     " (" + Sigar.FormatSize(txBytes) + ")");
-        } catch { }
+        } catch (SigarException) { }
 
         println("");
     }