diff --git a/common/src/software_config.cpp b/common/src/software_config.cpp
index 8fb3162..b476afd 100644
--- a/common/src/software_config.cpp
+++ b/common/src/software_config.cpp
@@ -17,7 +17,7 @@
     objectPath(objPath), configName(name), configType(configType),
     vendorIANA(vendorIANA), compatibleHardware(compatible)
 {
-    std::regex reCompatible("([a-zA-Z0-9])+(\\.([a-zA-Z0-9])+)+");
+    std::regex reCompatible("([a-zA-Z0-9_])+(\\.([a-zA-Z0-9_])+)+");
     std::cmatch m;
 
     if (name.empty())