diff --git a/scst/src/Makefile b/scst/src/Makefile
index 0a7b3f6c4..159aa769a 100644
--- a/scst/src/Makefile
+++ b/scst/src/Makefile
@@ -155,7 +155,7 @@ INSTALL_DIR_H := $(DESTDIR)$(PREFIX)/include/scst
 enable-Wextra = $(shell uname_r="$$(uname -r)"; if [ "$${uname_r%.el5}" = "$${uname_r}" ]; then echo "$(1)"; fi)
 
 EXTRA_CFLAGS += -I$(SCST_INC_DIR) $(call enable-Wextra,-Wextra \
-	-Wno-unused-parameter -Wno-missing-field-initializers) \
+	-Wno-unused-parameter -Wno-missing-field-initializers -Wno-sign-compare) \
 	$(shell [ -n "${CONFIG_SCST_NO_DLM}" ] && echo -DCONFIG_SCST_NO_DLM)
 
 #EXTRA_CFLAGS += -DCONFIG_SCST_STRICT_SERIALIZING
diff --git a/scst/src/dev_handlers/Makefile b/scst/src/dev_handlers/Makefile
index be8ca4332..8d998197f 100644
--- a/scst/src/dev_handlers/Makefile
+++ b/scst/src/dev_handlers/Makefile
@@ -75,7 +75,7 @@ endif
 enable-Wextra = $(shell uname_r="$$(uname -r)"; if [ "$${uname_r%.el5}" = "$${uname_r}" ]; then echo "$(1)"; fi)
 
 EXTRA_CFLAGS += -I$(SUBDIRS) -I$(SCST_INC_DIR) $(call enable-Wextra,-Wextra \
-	-Wno-unused-parameter -Wno-missing-field-initializers)
+	-Wno-unused-parameter -Wno-missing-field-initializers -Wno-sign-compare)
 
 EXTRA_CFLAGS += -DCONFIG_SCST_EXTRACHECKS