diff --git a/iscsi-scst/Makefile b/iscsi-scst/Makefile
index 9827cac51..1214121aa 100644
--- a/iscsi-scst/Makefile
+++ b/iscsi-scst/Makefile
@@ -114,7 +114,8 @@ else
 	endif
 endif
 
-run_conftest = $(shell if [ "0$(V)" -gt 0 ]; then output=/dev/stdout; else output=/dev/null; fi; if $(MAKE) -C $(KDIR) V=$(V) SUBDIRS="$(shell pwd)/conftest/$1" PRE_CFLAGS="-Werror $(OFED_CFLAGS)" 1>&2 2>$${output}; then echo "$(strip $2)"; else echo "$(strip $3)"; fi)
+# Use make instead of $(MAKE) to get rid of command-line option -i
+run_conftest = $(shell if [ "0$(V)" -gt 0 ]; then output=/dev/stdout; else output=/dev/null; fi; if MAKEFLAGS= make -C $(KDIR) V=$(V) SUBDIRS="$(shell pwd)/conftest/$1" PRE_CFLAGS="-Werror $(OFED_CFLAGS)" 1>&2 2>$${output}; then echo "$(strip $2)"; else echo "$(strip $3)"; fi)
 run_conftest_bool = $(call run_conftest,$1,-D$(strip $2)=1,-D$(strip $2)=0)
 
 CONFTESTS = $(shell ls -d conftest/*)
diff --git a/srpt/Makefile b/srpt/Makefile
index 0078ee610..214edee8f 100644
--- a/srpt/Makefile
+++ b/srpt/Makefile
@@ -87,7 +87,8 @@ endif
 OFED_MODULE_SYMVERS:=$(OFED_KERNEL_DIR)/$(MODULE_SYMVERS)
 endif
 
-run_conftest = $(shell if [ "0$(V)" -gt 0 ]; then output=/dev/stdout; else output=/dev/null; fi; if $(MAKE) -C $(KDIR) V=$(V) SUBDIRS="$(shell pwd)/conftest/$1" PRE_CFLAGS="-Werror $(OFED_CFLAGS)" 1>&2 2>$${output}; then echo "$(strip $2)"; else echo "$(strip $3)"; fi)
+# Use make instead of $(MAKE) to get rid of command-line option -i
+run_conftest = $(shell if [ "0$(V)" -gt 0 ]; then output=/dev/stdout; else output=/dev/null; fi; if MAKEFLAGS= make -C $(KDIR) V=$(V) SUBDIRS="$(shell pwd)/conftest/$1" PRE_CFLAGS="-Werror $(OFED_CFLAGS)" 1>&2 2>$${output}; then echo "$(strip $2)"; else echo "$(strip $3)"; fi)
 run_conftest_bool = $(call run_conftest,$1,-D$(strip $2)=1,-D$(strip $2)=0)
 
 CONFTESTS = $(shell ls -d conftest/*)