diff --git a/Makefile b/Makefile
index dae7940f..18602ab5 100644
--- a/Makefile
+++ b/Makefile
@@ -189,8 +189,6 @@ db-extras-artix7-harness:
 	+source minitests/roi_harness/arty-swbut.sh && \
 		$(MAKE) -C minitests/roi_harness \
 			HARNESS_DIR=$(XRAY_DATABASE_DIR)/artix7/harness/arty-a7/swbut run copy
-	+XRAY_PIN_00=J13 XRAY_PIN_01=J14 XRAY_PIN_02=K15 XRAY_PIN_03=K16 \
-		XRAY_PART=xc7a35tftg256-1 XRAY_EQUIV_PART=xc7a50tfgg484-1 $(MAKE) -C fuzzers roi_only
 
 db-extras-kintex7-parts:
 	@true
diff --git a/fuzzers/000-init-db/Makefile b/fuzzers/000-init-db/Makefile
index 849adebd..f4ef08d3 100644
--- a/fuzzers/000-init-db/Makefile
+++ b/fuzzers/000-init-db/Makefile
@@ -58,7 +58,7 @@ DB_FILES_PATH=$(addprefix $(XRAY_DATABASE_DIR)/$(XRAY_DATABASE)/,$(DB_FILES))
 BUILD_DIR = build_${XRAY_PART}
 
 check:
-	@mkdir -p build_
+	@mkdir -p $(BUILD_DIR)
 	@rm -f $(BUILD_DIR)/existing.txt
 	@for DB_FILE in $(sort $(notdir $(wildcard $(XRAY_DATABASE_DIR)/$(XRAY_DATABASE)/*.db))); do \
 		echo $$DB_FILE >> $(BUILD_DIR)/existing.txt; \