diff --git a/mswin32/winfix.cc b/mswin32/winfix.cc
index e240e1190..dbf73a9fe 100644
--- a/mswin32/winfix.cc
+++ b/mswin32/winfix.cc
@@ -223,9 +223,9 @@ Resorting to unprivileged (non-administrator) mode.", svcname, ret);
 
 quit_error:
   if (scm != NULL)
-    CloseHandle(scm);
+    CloseServiceHandle(scm);
   if (npf != NULL)
-    CloseHandle(npf);
+    CloseServiceHandle(npf);
 
   return false;
 }
diff --git a/nping/winfix.cc b/nping/winfix.cc
index e710157b8..a378d2840 100644
--- a/nping/winfix.cc
+++ b/nping/winfix.cc
@@ -223,9 +223,9 @@ Resorting to unprivileged (non-administrator) mode.", svcname, ret);
 
 quit_error:
   if (scm != NULL)
-    CloseHandle(scm);
+    CloseServiceHandle(scm);
   if (npf != NULL)
-    CloseHandle(npf);
+    CloseServiceHandle(npf);
 
   return false;
 }