diff --git a/src/fru_device.cpp b/src/fru_device.cpp
index 9e270f9..1b612e5 100644
--- a/src/fru_device.cpp
+++ b/src/fru_device.cpp
@@ -755,6 +755,7 @@
         {
             std::cerr << "Error: Can't use SMBus Receive Byte command bus "
                       << bus << "\n";
+            close(file);
             continue;
         }
         auto& device = busmap[bus];