diff --git a/src-3.0/GF/Compile.hs b/src-3.0/GF/Compile.hs
index 8836273b3..56fd56ce2 100644
--- a/src-3.0/GF/Compile.hs
+++ b/src-3.0/GF/Compile.hs
@@ -7,7 +7,7 @@ import GF.Compile.Rebuild
 import GF.Compile.Rename
 import GF.Compile.CheckGrammar
 import GF.Compile.Optimize
-import GF.Devel.OptimizeGF
+import GF.Compile.OptimizeGF
 import GF.Compile.GrammarToGFCC
 import GF.Compile.ReadFiles
 import GF.Compile.Update
diff --git a/src-3.0/GF/Compile/GrammarToGFCC.hs b/src-3.0/GF/Compile/GrammarToGFCC.hs
index 92b76771c..23c210f28 100644
--- a/src-3.0/GF/Compile/GrammarToGFCC.hs
+++ b/src-3.0/GF/Compile/GrammarToGFCC.hs
@@ -1,7 +1,7 @@
 {-# LANGUAGE PatternGuards #-}
 module GF.Compile.GrammarToGFCC (prGrammar2gfcc,mkCanon2gfcc,addParsers) where
 
-import GF.Devel.OptimizeGF (unshareModule)
+import GF.Compile.OptimizeGF (unshareModule)
 
 import GF.Grammar.Grammar
 import qualified GF.Grammar.Lookup as Look
diff --git a/src-3.0/GF/Devel/OptimizeGF.hs b/src-3.0/GF/Compile/OptimizeGF.hs
similarity index 99%
rename from src-3.0/GF/Devel/OptimizeGF.hs
rename to src-3.0/GF/Compile/OptimizeGF.hs
index e45e67584..8872a5105 100644
--- a/src-3.0/GF/Devel/OptimizeGF.hs
+++ b/src-3.0/GF/Compile/OptimizeGF.hs
@@ -15,7 +15,7 @@
 -- following advice of Josef Svenningsson
 -----------------------------------------------------------------------------
 
-module GF.Devel.OptimizeGF (
+module GF.Compile.OptimizeGF (
   optModule,unshareModule,unsubexpModule,unoptModule,subexpModule,shareModule
   ) where