diff --git a/webshell/src/Makefile.in b/webshell/src/Makefile.in
index 19137244451..b970d656427 100644
--- a/webshell/src/Makefile.in
+++ b/webshell/src/Makefile.in
@@ -29,7 +29,6 @@ CPPSRCS		= \
 		dlldeps.cpp \
 		nsDLLFactory.cpp \
 		nsDocLoader.cpp \
-		nsThrobber.cpp \
 		nsWebShell.cpp \
 		$(NULL)
 
diff --git a/webshell/src/makefile.win b/webshell/src/makefile.win
index e67934a0ddc..2362bec7393 100644
--- a/webshell/src/makefile.win
+++ b/webshell/src/makefile.win
@@ -30,7 +30,6 @@ CPPSRCS=				\
  nsComFactory.cpp			\
  nsDLLFactory.cpp			\
  nsDocLoader.cpp			\
- nsThrobber.cpp				\
  nsWebShell.cpp				\
  $(NULL)
 
@@ -39,7 +38,6 @@ CPP_OBJS=				\
  .\$(OBJDIR)\nsComFactory.obj		\
  .\$(OBJDIR)\nsDLLFactory.obj		\
  .\$(OBJDIR)\nsDocLoader.obj		\
- .\$(OBJDIR)\nsThrobber.obj		\
  .\$(OBJDIR)\nsWebShell.obj		\
  $(NULL)