diff --git a/server/TracyFilesystem.cpp b/server/TracyFilesystem.cpp
index e33de71c..6b4bdd8a 100644
--- a/server/TracyFilesystem.cpp
+++ b/server/TracyFilesystem.cpp
@@ -14,4 +14,14 @@ bool SourceFileValid( const char* fn, uint64_t olderThan, const View& view )
     return false;
 }
 
+bool SourceFileValid( const char* fn, uint64_t olderThan )
+{
+    struct stat buf;
+    if( stat( fn, &buf ) == 0 && ( buf.st_mode & S_IFREG ) != 0 )
+    {
+        return (uint64_t)buf.st_mtime < olderThan;
+    }
+    return false;
+}
+
 }
diff --git a/server/TracyFilesystem.hpp b/server/TracyFilesystem.hpp
index 40c9a62f..8b246dee 100644
--- a/server/TracyFilesystem.hpp
+++ b/server/TracyFilesystem.hpp
@@ -16,6 +16,7 @@ static inline bool FileExists( const char* fn )
 }
 
 bool SourceFileValid( const char* fn, uint64_t olderThan, const View& view );
+bool SourceFileValid( const char* fn, uint64_t olderThan );
 
 }