diff --git a/callbacks/file_util.py b/callbacks/file_util.py
index 68be21fe..6e9a5692 100644
--- a/callbacks/file_util.py
+++ b/callbacks/file_util.py
@@ -44,7 +44,7 @@ def convert_text_to_path(text):
         ":", "_").replace(";", "__").replace("-", "_").replace('.', '_').replace(' ', '')
 
 
-def get_path_to_temp(genomic_interval, analysis_type, *args):
+def get_path_to_temp(genomic_intervals, analysis_type, *args):
     """
     Forms the path to temporary (file-cached) results of given post-GWAS analysis
     This function returns only the path name. It does not create the actual file or directory
@@ -58,7 +58,7 @@ def get_path_to_temp(genomic_interval, analysis_type, *args):
     - Path to temporary (file-cached) results of post-GWAS analysis
     """
     genomic_interval_foldername = shorten_name(convert_text_to_path(
-        genomic_interval))
+        genomic_intervals))
 
     analysis_type = convert_text_to_path(analysis_type)
 
diff --git a/callbacks/lift_over/util.py b/callbacks/lift_over/util.py
index 5eb4f343..5b8c0ddf 100644
--- a/callbacks/lift_over/util.py
+++ b/callbacks/lift_over/util.py
@@ -47,7 +47,7 @@ def construct_options_other_ref_genomes():
 # =====================================================
 
 
-def is_error(genomic_interval):
+def is_error(genomic_intervals):
     """
     Returns True if given genomic interval is malformed; False, otherwise
 
@@ -60,7 +60,7 @@ def is_error(genomic_interval):
     Returns:
     - True if given genomic interval is malformed; False, otherwise
     """
-    return isinstance(genomic_interval[0], int)
+    return isinstance(genomic_intervals[0], int)
 
 
 def get_error_message(error_code):