diff --git a/hls4ml/templates/catapult/build_lib.sh b/hls4ml/templates/catapult/build_lib.sh
index 6fedb3089a..38b04e6330 100755
--- a/hls4ml/templates/catapult/build_lib.sh
+++ b/hls4ml/templates/catapult/build_lib.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+set -e
 
 CC=g++
 CFLAGS="-O3 -fPIC -std=c++11"
diff --git a/hls4ml/templates/symbolic/build_lib.sh b/hls4ml/templates/symbolic/build_lib.sh
index 9db3b1a6ff..67425bac25 100755
--- a/hls4ml/templates/symbolic/build_lib.sh
+++ b/hls4ml/templates/symbolic/build_lib.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+set -e
 
 CC=g++
 CFLAGS="-O3 -fPIC -std=c++11"
diff --git a/hls4ml/templates/vivado_accelerator/build_lib.sh b/hls4ml/templates/vivado_accelerator/build_lib.sh
index bef29b0eb5..4f335391bf 100755
--- a/hls4ml/templates/vivado_accelerator/build_lib.sh
+++ b/hls4ml/templates/vivado_accelerator/build_lib.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+set -e
 
 CC=g++
 CFLAGS="-O3 -fPIC -std=c++11"