diff --git a/tests/python_tests/pgraster_test.py b/tests/python_tests/pgraster_test.py
index 915c4064b..b496ad44d 100644
--- a/tests/python_tests/pgraster_test.py
+++ b/tests/python_tests/pgraster_test.py
@@ -32,6 +32,7 @@ def call(cmd,silent=False):
     if not stderr:
         return stdin.strip()
     elif not silent and 'error' in stderr.lower() \
+        or 'not found' in stderr.lower() \
         or 'could not connect' in stderr.lower() \
         or 'bad connection' in stderr.lower() \
         or 'not recognized as an internal' in stderr.lower():
diff --git a/tests/python_tests/postgis_test.py b/tests/python_tests/postgis_test.py
index 1ad22113d..13f46a09e 100644
--- a/tests/python_tests/postgis_test.py
+++ b/tests/python_tests/postgis_test.py
@@ -24,6 +24,7 @@ def call(cmd,silent=False):
     if not stderr:
         return stdin.strip()
     elif not silent and 'error' in stderr.lower() \
+        or 'not found' in stderr.lower() \
         or 'could not connect' in stderr.lower() \
         or 'bad connection' in stderr.lower() \
         or 'not recognized as an internal' in stderr.lower():