diff --git a/scripts/noaa/gpcc_spi/gpcc_spi_aggregation_test.py b/scripts/noaa/gpcc_spi/gpcc_spi_aggregation_test.py
index 6bfdce3e32..c0c44e24ce 100644
--- a/scripts/noaa/gpcc_spi/gpcc_spi_aggregation_test.py
+++ b/scripts/noaa/gpcc_spi/gpcc_spi_aggregation_test.py
@@ -19,7 +19,7 @@
 import os
 import tempfile
 import filecmp
-from gpcc_spi_aggregation import run_gpcc_spi_aggregation
+from .gpcc_spi_aggregation import run_gpcc_spi_aggregation
 
 # module_dir is the path to where this test is running from.
 module_dir = os.path.dirname(__file__)
diff --git a/scripts/noaa/gpcc_spi/preprocess_gpcc_spi_test.py b/scripts/noaa/gpcc_spi/preprocess_gpcc_spi_test.py
index 8476cc354e..24924f38b0 100644
--- a/scripts/noaa/gpcc_spi/preprocess_gpcc_spi_test.py
+++ b/scripts/noaa/gpcc_spi/preprocess_gpcc_spi_test.py
@@ -16,7 +16,7 @@
 Usage: python -m unittest discover -v -s ../ -p "preprocess_gpcc_spi_test.py"
 '''
 import unittest
-from preprocess_gpcc_spi import preprocess_one
+from .preprocess_gpcc_spi import preprocess_one
 import os
 import tempfile
 import filecmp