diff --git a/fuzzers/015-clbnffmux/generate.py b/fuzzers/015-clbnffmux/generate.py
index a559aada..1e9c20cf 100644
--- a/fuzzers/015-clbnffmux/generate.py
+++ b/fuzzers/015-clbnffmux/generate.py
@@ -18,11 +18,11 @@ clb_NFFMUX_O6,SLICE_X14Y100,3
 f = open('params.csv', 'r')
 f.readline()
 for l in f:
-    src,loc,n = l.split(',')
+    module,loc,n = l.split(',')
     n = int(n)
     which = chr(ord('A') + n)
     # clb_NFFMUX_AX => AX
-    src = src.replace('clb_NFFMUX_', '')
+    src = module.replace('clb_NFFMUX_', '')
 
     '''
     AFFMUX
diff --git a/fuzzers/016-clbnoutmux/generate.py b/fuzzers/016-clbnoutmux/generate.py
index 36727918..43136180 100644
--- a/fuzzers/016-clbnoutmux/generate.py
+++ b/fuzzers/016-clbnoutmux/generate.py
@@ -18,11 +18,11 @@ clb_NFFMUX_O6,SLICE_X14Y100,3
 f = open('params.csv', 'r')
 f.readline()
 for l in f:
-    src,loc,n = l.split(',')
+    module,loc,n = l.split(',')
     n = int(n)
     which = chr(ord('A') + n)
     # clb_NFFMUX_AX => AX
-    src = src.replace('clb_NOUTMUX_', '')
+    src = module.replace('clb_NOUTMUX_', '')
 
     '''
     BOUTMUX