diff --git a/libraries/AP_HAL/utility/srxl.cpp b/libraries/AP_HAL/utility/srxl.cpp
index a217dd8fd3..cbaf5af1e4 100644
--- a/libraries/AP_HAL/utility/srxl.cpp
+++ b/libraries/AP_HAL/utility/srxl.cpp
@@ -510,5 +510,6 @@ int main(int argc, const char *argv[])
             }
         }
     }
+    fclose(f);
 }
 #endif