diff --git a/implementations/corvus/generate-and-run.sh b/implementations/corvus/generate-and-run.sh
index 402b36c..d139a88 100755
--- a/implementations/corvus/generate-and-run.sh
+++ b/implementations/corvus/generate-and-run.sh
@@ -1,5 +1,7 @@
 #!/bin/bash
 
+set -e
+
 SCHEMA=$1
 INSTANCES=$2
 
diff --git a/implementations/kmp-json-schema-validator/run.sh b/implementations/kmp-json-schema-validator/run.sh
index 4414cc1..45af5e3 100755
--- a/implementations/kmp-json-schema-validator/run.sh
+++ b/implementations/kmp-json-schema-validator/run.sh
@@ -1,3 +1,5 @@
 #!/bin/bash
 
+set -e
+
 gradle run --quiet --args="$1 $2"