diff --git a/lib/bb/ui/crumbs/imagedetailspage.py b/lib/bb/ui/crumbs/imagedetailspage.py
index 276281d..46d55c8 100755
--- a/lib/bb/ui/crumbs/imagedetailspage.py
+++ b/lib/bb/ui/crumbs/imagedetailspage.py
@@ -268,7 +268,8 @@ class ImageDetailsPage (HobPage):
                 break
 
         for t in self.builder.parameters.runnable_machine_patterns:
-            if t in image_name:
+            mach_string = image_name.strip(self.builder.hob_image + '-')
+            if mach_string.startswith(t):
                 mach_runnable = True
                 break