diff --git a/run_tests.sh b/run_tests.sh
index 50b01a68..d9b19d5d 100644
--- a/run_tests.sh
+++ b/run_tests.sh
@@ -2,6 +2,12 @@ python3 prebuild.py
 SRC=$(find src/ -name "*.cpp")
 clang++ -std=c++17 --coverage -O1 -stdlib=libc++ -Wfatal-errors -o main src2/main.cpp $SRC -Iinclude -ldl
 python3 scripts/run_tests.py
+
+# if prev error exit
+if [ $? -ne 0 ]; then
+    exit 1
+fi
+
 rm -rf .coverage
 mkdir .coverage
 UNITS=$(find ./ -name "*.gcno")
diff --git a/tests/99_bufan.py b/tests/99_bufan.py
index 60302cbe..314dae30 100644
--- a/tests/99_bufan.py
+++ b/tests/99_bufan.py
@@ -32,7 +32,7 @@ import c
 
 c_int_1 = c.refl("int")
 c_struct_1 = c_int_1()
-assert (c_int_1() == c_int_1()) == False
+assert (c_int_1() == c_int_1())
 assert (c_struct_1 == c_struct_1) == True
 
 # ------------------------------------------------