diff --git a/Makefile b/Makefile
index 9f3caff..26c169a 100644
--- a/Makefile
+++ b/Makefile
@@ -420,7 +420,8 @@ endif
 .PHONY: import-sql
 import-sql: all start-db-nowait
 	$(DOCKER_COMPOSE) run $(DC_OPTS) openmaptiles-tools sh -c 'pgwait && import-sql' | \
-	  awk -v s=": WARNING:" '1{print; fflush()} $$0~s{print "\n*** WARNING detected, aborting"; exit(1)}'
+    	awk -v s=": WARNING:" '1{print; fflush()} $$0~s{print "\n*** WARNING detected, aborting"; exit(1)}' | \
+    	awk '1{print; fflush()} $$0~".*ERROR" {txt=$$0} END{ if(txt){print "\n*** ERROR detected, aborting:"; print txt; exit(1)} }'
 
 .PHONY: generate-tiles
 generate-tiles: all start-db