diff --git a/src/reHDD.cpp b/src/reHDD.cpp
index e4f15ce..c9f23df 100644
--- a/src/reHDD.cpp
+++ b/src/reHDD.cpp
@@ -408,10 +408,11 @@ void reHDD::filterIgnoredDrives(list<Drive> *plistDrives)
 
             while ((getline(&cLine, &len, outputfileBlkid)) != -1) // parse UUID from blkid
             {
-                if (string(cLine).find("PTUUID") != string::npos)
+                size_t ptuuidPos = string(cLine).find("PTUUID");
+                if (ptuuidPos != string::npos)
                 {
                     string sBlkidOut = string(cLine);
-                    sBlkidOut.erase(0, 18);
+                    sBlkidOut.erase(0, ptuuidPos + 8);
                     sBlkidOut.erase(8, sBlkidOut.length());
                     sUUID = sBlkidOut;
                     // cout << "blkid uuid:" << sUUID << endl;