diff --git a/bfps/tools.py b/bfps/tools.py
index dbc162bb260888dda24eb327825d0febae3c4c09..91440be2a7b3e0ac1e305241c134ac4c6e554534 100644
--- a/bfps/tools.py
+++ b/bfps/tools.py
@@ -164,7 +164,7 @@ def get_fornberg_coeffs(
             coeffs[-1].append(d[m][N][j])
     return np.array(coeffs).astype(np.float)
 
-def acceleration_test(
+def particle_finite_diff_test(
         c,
         m = 3,
         species = 0,
diff --git a/tests/base.py b/tests/base.py
index cbe922b0eb7de93281a9c0984daf2f9161cc2c68..a88f3562b39c1e9c938e646790eac874ab10e232 100644
--- a/tests/base.py
+++ b/tests/base.py
@@ -34,7 +34,7 @@ import matplotlib.pyplot as plt
 
 import bfps
 from bfps import fluid_resize
-from bfps.tools import acceleration_test
+from bfps.tools import particle_finite_diff_test as acceleration_test
 
 parser = bfps.get_parser()
 parser.add_argument('--initialize', dest = 'initialize', action = 'store_true')