diff --git a/editor/txmgr/tests/Makefile.in b/editor/txmgr/tests/Makefile.in
index f640d7fe70e5..f3bd03f3771a 100644
--- a/editor/txmgr/tests/Makefile.in
+++ b/editor/txmgr/tests/Makefile.in
@@ -28,6 +28,7 @@ INCLUDES	+= -I$(DIST)/include
 LIBS		= \
 		  -lraptorbase \
 		  -lxpcom \
+		  -lreg \
 		  $(NSPR_LIBS) \
 		  $(NULL)
 
diff --git a/htmlparser/tests/logparse/Makefile.in b/htmlparser/tests/logparse/Makefile.in
index 19dfd9f3ddb1..00237c889891 100644
--- a/htmlparser/tests/logparse/Makefile.in
+++ b/htmlparser/tests/logparse/Makefile.in
@@ -34,6 +34,7 @@ LIBS = \
 	-lraptorhtmlpars \
 	-lraptorbase \
 	-lxpcom \
+	-lreg \
 	$(NSPR_LIBS) \
 	$(NULL)
 
diff --git a/intl/strres/tests/Makefile.in b/intl/strres/tests/Makefile.in
index a799fe218632..1ff703388322 100644
--- a/intl/strres/tests/Makefile.in
+++ b/intl/strres/tests/Makefile.in
@@ -46,6 +46,7 @@ LIBS		= \
 	-lxp \
 	-lraptorbase \
 	-lxpcom \
+	-lreg \
 	$(ZLIB_LIBS) \
 	$(NSPR_LIBS) \
 	$(NULL)
diff --git a/layout/base/tests/Makefile.in b/layout/base/tests/Makefile.in
index a6dc38d7f354..72e64c591dac 100644
--- a/layout/base/tests/Makefile.in
+++ b/layout/base/tests/Makefile.in
@@ -55,6 +55,7 @@ LIBS = \
 	$(JPEG_LIBS) \
 	-ljs \
 	-lxpcom \
+	-lreg \
 	-lxp \
 	$(ZLIB_LIBS) \
 	$(TK_LIBS) \
diff --git a/layout/html/tests/Makefile.in b/layout/html/tests/Makefile.in
index f014ac2762c5..0bebb2c59f31 100644
--- a/layout/html/tests/Makefile.in
+++ b/layout/html/tests/Makefile.in
@@ -62,6 +62,7 @@ LIBS = \
 	-lsecfree \
 	-ljs \
 	-lxpcom \
+	-lreg \
 	-lxp \
 	$(ZLIB_LIBS) \
 	$(NSPR_LIBS) \
diff --git a/network/module/tests/Makefile.in b/network/module/tests/Makefile.in
index 3cab24a42486..2269ce1af6b6 100644
--- a/network/module/tests/Makefile.in
+++ b/network/module/tests/Makefile.in
@@ -30,7 +30,7 @@ CPPSRCS = \
 
 LOCAL_INCLUDES := -I$(srcdir)/../src
 
-REQUIRES = raptor netlib xpcom pref
+REQUIRES = raptor netlib xpcom reg pref
 
 LIBS = \
 	-labouturl \
diff --git a/parser/htmlparser/tests/logparse/Makefile.in b/parser/htmlparser/tests/logparse/Makefile.in
index 19dfd9f3ddb1..00237c889891 100644
--- a/parser/htmlparser/tests/logparse/Makefile.in
+++ b/parser/htmlparser/tests/logparse/Makefile.in
@@ -34,6 +34,7 @@ LIBS = \
 	-lraptorhtmlpars \
 	-lraptorbase \
 	-lxpcom \
+	-lreg \
 	$(NSPR_LIBS) \
 	$(NULL)
 
diff --git a/rdf/tests/localfile/Makefile.in b/rdf/tests/localfile/Makefile.in
index 247f58beeef8..63c82d4c696a 100644
--- a/rdf/tests/localfile/Makefile.in
+++ b/rdf/tests/localfile/Makefile.in
@@ -31,6 +31,7 @@ REQUIRES	=
 LIBS		= \
 	-lxpcom \
 	-lraptorbase \
+	-lreg \
 	$(NSPR_LIBS) \
 	$(NULL)
 
diff --git a/rdf/tests/rdfsink/Makefile.in b/rdf/tests/rdfsink/Makefile.in
index ce4d4fbd027d..102363313a3d 100644
--- a/rdf/tests/rdfsink/Makefile.in
+++ b/rdf/tests/rdfsink/Makefile.in
@@ -30,6 +30,7 @@ REQUIRES	=
 
 LIBS		= \
 	-lxpcom \
+	-lreg \
 	$(NSPR_LIBS) \
 	$(NULL)
 
diff --git a/widget/tests/scribble/Makefile.in b/widget/tests/scribble/Makefile.in
index 685943bcfed6..4797e9340bec 100644
--- a/widget/tests/scribble/Makefile.in
+++ b/widget/tests/scribble/Makefile.in
@@ -57,7 +57,6 @@ LIBS := \
 	$(TOOLKIT_BASE_LIB) \
 	-lraptorhtmlpars \
 	-lraptorview \
-	-lreg \
 	-labouturl \
 	-lfileurl \
 	-lftpurl \
@@ -79,7 +78,6 @@ LIBS := \
 	-lnetwork \
 	-lpwcac \
 	-lraptorwebwidget \
-	-lreg \
 	-lremoturl \
 	-lsecfree \
 	-ltestdynamic \
@@ -89,6 +87,7 @@ LIBS := \
 	-lmozutil \
 	-lxp \
 	-lxpcom \
+	-lreg \
 	$(ZLIB_LIBS) \
 	-lraptorplugin \
 	-lmozdbm \
diff --git a/widget/tests/widget/Makefile.in b/widget/tests/widget/Makefile.in
index 7de07f05a6ca..4edcf196580e 100644
--- a/widget/tests/widget/Makefile.in
+++ b/widget/tests/widget/Makefile.in
@@ -64,6 +64,7 @@ LIBS := \
 	$(JPEG_LIBS) \
 	-lraptorbase \
 	-lxpcom \
+	-lreg \
 	-ljs \
 	-lwidget$(MOZ_TOOLKIT) \
 	-lxp \
diff --git a/xpcom/tests/Makefile.in b/xpcom/tests/Makefile.in
index 926d2f218b3d..2c48d0b1d81f 100644
--- a/xpcom/tests/Makefile.in
+++ b/xpcom/tests/Makefile.in
@@ -71,6 +71,7 @@ LIBS		= \
 	-lraptorbase  \
 	-lxp	      \
 	-lxpcom       \
+	-lreg       \
 	-ljsurl	      \
 	-lmozdbm      \
 	-lpwcac	      \