diff --git a/sc/source/filter/excel/makefile.mk b/sc/source/filter/excel/makefile.mk
index 8fc7e696a38e..785ad197a168 100644
--- a/sc/source/filter/excel/makefile.mk
+++ b/sc/source/filter/excel/makefile.mk
@@ -40,6 +40,8 @@ PROJECTPCH4DLL=TRUE
 PROJECTPCH=filt_pch
 PROJECTPCHSOURCE=..\pch\filt_pch
 
+VISIBILITY_HIDDEN=TRUE
+
 # --- Settings -----------------------------------------------------
 
 .INCLUDE :  scpre.mk
diff --git a/sc/source/filter/html/makefile.mk b/sc/source/filter/html/makefile.mk
index 6bdb674a5226..3f2338da4a1c 100644
--- a/sc/source/filter/html/makefile.mk
+++ b/sc/source/filter/html/makefile.mk
@@ -40,6 +40,8 @@ PROJECTPCH4DLL=TRUE
 PROJECTPCH=filt_pch
 PROJECTPCHSOURCE=..\pch\filt_pch
 
+VISIBILITY_HIDDEN=TRUE
+
 # --- Settings -----------------------------------------------------
 
 .INCLUDE :  scpre.mk
diff --git a/sc/source/filter/lotus/makefile.mk b/sc/source/filter/lotus/makefile.mk
index d16c4f2aca32..3ad32c8bc295 100644
--- a/sc/source/filter/lotus/makefile.mk
+++ b/sc/source/filter/lotus/makefile.mk
@@ -40,6 +40,8 @@ PROJECTPCHSOURCE=..\pch\filt_pch
 
 AUTOSEG=true
 
+VISIBILITY_HIDDEN=TRUE
+
 # --- Settings -----------------------------------------------------
 
 .INCLUDE :  scpre.mk
diff --git a/sc/source/filter/rtf/makefile.mk b/sc/source/filter/rtf/makefile.mk
index 6bacb3333b94..5240252abe85 100644
--- a/sc/source/filter/rtf/makefile.mk
+++ b/sc/source/filter/rtf/makefile.mk
@@ -40,6 +40,8 @@ PROJECTPCH4DLL=TRUE
 PROJECTPCH=filt_pch
 PROJECTPCHSOURCE=..\pch\filt_pch
 
+VISIBILITY_HIDDEN=TRUE
+
 # --- Settings -----------------------------------------------------
 
 .INCLUDE :  scpre.mk
diff --git a/sc/source/filter/starcalc/makefile.mk b/sc/source/filter/starcalc/makefile.mk
index 526476e3c445..529d3772562a 100644
--- a/sc/source/filter/starcalc/makefile.mk
+++ b/sc/source/filter/starcalc/makefile.mk
@@ -40,6 +40,8 @@ PROJECTPCHSOURCE=..\pch\filt_pch
 
 AUTOSEG=true
 
+VISIBILITY_HIDDEN=TRUE
+
 # --- Settings -----------------------------------------------------
 
 .INCLUDE :  scpre.mk
diff --git a/sc/source/filter/xcl97/makefile.mk b/sc/source/filter/xcl97/makefile.mk
index 42cb08cc37a1..c40209d40819 100644
--- a/sc/source/filter/xcl97/makefile.mk
+++ b/sc/source/filter/xcl97/makefile.mk
@@ -40,6 +40,8 @@ PROJECTPCH4DLL=TRUE
 PROJECTPCH=filt_pch
 PROJECTPCHSOURCE=..\pch\filt_pch
 
+VISIBILITY_HIDDEN=TRUE
+
 # --- Settings -----------------------------------------------------
 
 .INCLUDE :	scpre.mk