diff --git a/rbutil/rbutilqt/base/utils.cpp b/rbutil/rbutilqt/base/utils.cpp
index 1452ada330..bd2bce0609 100644
--- a/rbutil/rbutilqt/base/utils.cpp
+++ b/rbutil/rbutilqt/base/utils.cpp
@@ -211,9 +211,9 @@ QString Utils::checkEnvironment(bool permission)
  */
 int Utils::compareVersionStrings(QString s1, QString s2)
 {
+    qDebug() << "[Utils] comparing version strings" << s1 << "and" << s2;
     QString a = s1.trimmed();
     QString b = s2.trimmed();
-    qDebug() << "[Utils] comparing version strings" << a << "and" << b;
     // if strings are identical return 0.
     if(a.isEmpty())
         return 1;
@@ -252,8 +252,19 @@ int Utils::compareVersionStrings(QString s1, QString s2)
         a.remove(QRegExp("^\\d*"));
         b.remove(QRegExp("^\\d*"));
 
+        // If only one of the following characters is a dot that one is
+        // "greater" then anything else. Make sure it's followed by a number,
+        // Otherwise it might be the end of the string or suffix.  Do this
+        // before version addon characters check to avoid stopping too early.
+        bool adot = a.contains(QRegExp("^[a-zA-Z]*\\.[0-9]"));
+        bool bdot = b.contains(QRegExp("^[a-zA-Z]*\\.[0-9]"));
+        if(adot && !bdot)
+            return -1;
+        if(!adot && bdot)
+            return 1;
         // if number is immediately followed by a character consider it as
-        // version addon (like 1.2.3b). In this case compare characters too.
+        // version addon (like 1.2.3b). In this case compare characters and end
+        // (version numbers like 1.2b.3 aren't handled).
         QChar ltra;
         QChar ltrb;
         if(a.contains(QRegExp("^[a-zA-Z]")))
@@ -262,6 +273,7 @@ int Utils::compareVersionStrings(QString s1, QString s2)
             ltrb = b.at(0);
         if(ltra != ltrb)
             return (ltra < ltrb) ? 1 : -1;
+
         // both are identical or no addon characters, ignore.
         // remove modifiers and following dot.
         a.remove(QRegExp("^[a-zA-Z]*\\."));
diff --git a/rbutil/rbutilqt/test/compareversion.cpp b/rbutil/rbutilqt/test/compareversion.cpp
index db1c62e5d5..80bddf733a 100644
--- a/rbutil/rbutilqt/test/compareversion.cpp
+++ b/rbutil/rbutilqt/test/compareversion.cpp
@@ -62,6 +62,12 @@ const struct testvector testdata[] =
     { "test-1.2.3.tar.gz",      "program-1.2.3.1.tar.bz2",      1 },
     { "program-1.2.3.zip",      "program-1.2.3a.zip",           1 },
     { "program-1.2.3.tar.bz2",  "2.0.0",                        1 },
+    { "prog-1.2-64bit.tar.bz2", "prog-1.2.3.tar.bz2",           1 },
+    { "prog-1.2-64bit.tar.bz2", "prog-1.2-64bit.tar.bz2",       0 },
+    { "prog-1.2-64bit.tar.bz2", "prog-1.2.3-64bit.tar.bz2",     1 },
+    { "prog-1.2a-64bit.tar.bz2","prog-1.2b-64bit.tar.bz2",      1 },
+    { "prog-1.2-64bit.tar.bz2", "prog-1.2.3a-64bit.tar.bz2",    1 },
+    { "prog-1.2a-64bit.tar.bz2","prog-1.2.3-64bit.tar.bz2",     1 },
 };
 
 
@@ -72,8 +78,9 @@ void TestVersionCompare::testMain()
         QCOMPARE(Utils::compareVersionStrings(testdata[i].first,
                 testdata[i].second), testdata[i].expected);
         // inverse test possible because function return values are symmetrical.
-        QCOMPARE(Utils::compareVersionStrings(testdata[i].second,
-                testdata[i].first), -testdata[i].expected);
+        if(testdata[i].expected != 0)
+            QCOMPARE(Utils::compareVersionStrings(testdata[i].second,
+                    testdata[i].first), -testdata[i].expected);
     }
 }