diff --git a/Makefile b/Makefile
index fa39dee..5832a97 100644
--- a/Makefile
+++ b/Makefile
@@ -5,7 +5,7 @@ TESTS=broken-tags.txt well-formed-tags.txt
 ALL_MODULES=${MODULES} 
 REGISTRY=http://www.iana.org/assignments/language-subtag-registry
 REGISTRYFILE=language-subtag-registry
-ALL_PROGRAMS=check-wf check-valid tests-from-files display-tag registry2xml registry2txt registry2postgresql check-registry
+ALL_PROGRAMS=check-wf check-valid tests-from-files display-tag registry2xml registry2txt registry2postgresql registry2sqlite registry2mulhtml check-registry
 TARBALL=/tmp/gabuzomeu.tar
 
 default: check-wf check-valid check-registry
diff --git a/Registry/registry2mulhtml.hs b/Registry/registry2mulhtml.hs
index 1f69434..81a0d26 100644
--- a/Registry/registry2mulhtml.hs
+++ b/Registry/registry2mulhtml.hs
@@ -1,5 +1,4 @@
-import qualified IO
-import qualified System
+import qualified System.IO as IO
 
 import Registry.Utils
 import Registry.Grammar (registry)
diff --git a/Registry/registry2sqlite.hs b/Registry/registry2sqlite.hs
index 5a37684..5a0a913 100644
--- a/Registry/registry2sqlite.hs
+++ b/Registry/registry2sqlite.hs
@@ -1,5 +1,4 @@
-import qualified IO
-import qualified System
+import qualified System.IO as IO
 
 import Registry.Utils
 import Registry.Utils.SQLite