diff --git a/lib/libimhex/source/helpers/file.cpp b/lib/libimhex/source/helpers/file.cpp
index 8dc276979..84939b015 100644
--- a/lib/libimhex/source/helpers/file.cpp
+++ b/lib/libimhex/source/helpers/file.cpp
@@ -103,9 +103,12 @@ namespace hex {
 
         auto startPos = ftello64(this->m_file);
         fseeko64(this->m_file, 0, SEEK_END);
-        size_t size = ftello64(this->m_file);
+        auto size = ftello64(this->m_file);
         fseeko64(this->m_file, startPos, SEEK_SET);
 
+        if (size < 0)
+            return 0;
+
         return size;
     }