diff --git a/poky/meta/classes/base.bbclass b/poky/meta/classes/base.bbclass
index 1636c6e..90af8ba 100644
--- a/poky/meta/classes/base.bbclass
+++ b/poky/meta/classes/base.bbclass
@@ -10,7 +10,9 @@
 inherit metadata_scm
 inherit logging
 
-OE_IMPORTS += "os sys time oe.path oe.utils oe.types oe.package oe.packagegroup oe.sstatesig oe.lsb oe.cachedpath oe.license"
+OE_EXTRA_IMPORTS ?= ""
+
+OE_IMPORTS += "os sys time oe.path oe.utils oe.types oe.package oe.packagegroup oe.sstatesig oe.lsb oe.cachedpath oe.license ${OE_EXTRA_IMPORTS}"
 OE_IMPORTS[type] = "list"
 
 def oe_import(d):
@@ -639,6 +641,18 @@
     if needsrcrev:
         d.setVar("SRCPV", "${@bb.fetch2.get_srcrev(d)}")
 
+        # Gather all named SRCREVs to add to the sstate hash calculation
+        # This anonymous python snippet is called multiple times so we
+        # need to be careful to not double up the appends here and cause
+        # the base hash to mismatch the task hash
+        for uri in srcuri.split():
+            parm = bb.fetch.decodeurl(uri)[5]
+            uri_names = parm.get("name", "").split(",")
+            for uri_name in filter(None, uri_names):
+                srcrev_name = "SRCREV_{}".format(uri_name)
+                if srcrev_name not in (d.getVarFlag("do_fetch", "vardeps") or "").split():
+                    d.appendVarFlag("do_fetch", "vardeps", " {}".format(srcrev_name))
+
     set_packagetriplet(d)
 
     # 'multimachine' handling