diff --git a/_RebuildReleaseAndRunTests.sh b/_RebuildReleaseAndRunTests.sh
index 07cc623c5..5cad92e5c 100755
--- a/_RebuildReleaseAndRunTests.sh
+++ b/_RebuildReleaseAndRunTests.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/sh -e
 MONO_IOMAP=case msbuild /p:Configuration=release pabcnetc.sln
 MONO_IOMAP=case msbuild /p:Configuration=release CodeCompletion/CodeCompletion.csproj
 mono --aot bin/pabcnetc.exe