diff --git a/calendar/sunbird/app/Makefile.in b/calendar/sunbird/app/Makefile.in
index a0e09db409..d64f533682 100644
--- a/calendar/sunbird/app/Makefile.in
+++ b/calendar/sunbird/app/Makefile.in
@@ -228,7 +228,7 @@ ifeq ($(OS_ARCH),OS2)
 RESFILE=splashos2.res
 RCFLAGS += -DMOZ_SUNBIRD
 ifdef BUILD_STATIC_LIBS
-RCFLAGS += -DMOZ_STATIC_BUILD -i $(DIST)/include/widget
+RCFLAGS += -DMOZ_STATIC_BUILD -i $(DIST)/include
 endif
 ifdef DEBUG
 RCFLAGS += -DDEBUG
diff --git a/mail/app/Makefile.in b/mail/app/Makefile.in
index f394007acf..a634906b65 100644
--- a/mail/app/Makefile.in
+++ b/mail/app/Makefile.in
@@ -221,7 +221,7 @@ ifeq ($(OS_ARCH),OS2)
 RESFILE=splashos2.res
 RCFLAGS += -DMOZ_THUNDERBIRD
 ifdef BUILD_STATIC_LIBS
-RCFLAGS += -DMOZ_STATIC_BUILD -i $(DIST)/include/widget
+RCFLAGS += -DMOZ_STATIC_BUILD -i $(DIST)/include
 endif
 ifdef DEBUG
 RCFLAGS += -DDEBUG
diff --git a/suite/app/Makefile.in b/suite/app/Makefile.in
index d1df39310c..eda2e61b27 100644
--- a/suite/app/Makefile.in
+++ b/suite/app/Makefile.in
@@ -209,7 +209,7 @@ ifeq ($(OS_ARCH),OS2)
 RESFILE = splashos2.res
 RCFLAGS += -i $(MOZILLA_SRCDIR)/toolkit/xre
 ifdef BUILD_STATIC_LIBS
-RCFLAGS += -DMOZ_STATIC_BUILD -i $(DIST)/include/widget
+RCFLAGS += -DMOZ_STATIC_BUILD -i $(DIST)/include
 endif
 endif