diff --git a/HydrologicalSignatures.py b/HydrologicalSignatures.py
index 278d0aa037977b128a8bf4d379214837a1c89a61..7bae63a4b40069edf389775d651ba7c76e697c90 100644
--- a/HydrologicalSignatures.py
+++ b/HydrologicalSignatures.py
@@ -376,8 +376,10 @@ class HydrologicalSignatures(object):
                 locmin_temp = locs_min[bool_indic]
                 pksmin_temp = pks_min[bool_indic]
                 indic2 = pksmin_temp == min(pksmin_temp)
-                locs_min2[pp] = locmin_temp[indic2[-1]]
-                pks_min2[pp] = pksmin_temp[indic2[-1]]
+                lcmin = locmin_temp[indic2]
+                pkmin = pksmin_temp[indic2]
+                locs_min2[pp] = lcmin[-1]
+                pks_min2[pp] = pkmin[-1]
             else:
                 locs_min2[pp] = np.nan
                 pks_min2[pp] = np.nan