diff --git a/meta/classes/base.bbclass b/meta/classes/base.bbclass
index dfa580c583..93bc700a50 100644
--- a/meta/classes/base.bbclass
+++ b/meta/classes/base.bbclass
@@ -433,7 +433,7 @@ python () {
         extradeps = []
         extrardeps = []
         extraconf = []
-        for flag, flagval in pkgconfigflags.items():
+        for flag, flagval in sorted(pkgconfigflags.items()):
             if flag == "defaultval":
                 continue
             items = flagval.split(",")