diff --git a/src/SConscript b/src/SConscript
index 4b6db448ce..9f82bdc705 100644
--- a/src/SConscript
+++ b/src/SConscript
@@ -645,11 +645,8 @@ def makeTheISA(source, target, env):
     # create an enum for any run-time determination of the ISA, we
     # reuse the same name as the namespaces
     code('enum class Arch {')
-    for i,isa in enumerate(isas):
-        if i + 1 == len(isas):
-            code('  $0 = $1', namespace(isa), define(isa))
-        else:
-            code('  $0 = $1,', namespace(isa), define(isa))
+    for isa in isas:
+        code('  $0 = $1,', namespace(isa), define(isa))
     code('};')
 
     code('''
@@ -690,11 +687,8 @@ def makeTheGPUISA(source, target, env):
     # create an enum for any run-time determination of the ISA, we
     # reuse the same name as the namespaces
     code('enum class GPUArch {')
-    for i,isa in enumerate(isas):
-        if i + 1 == len(isas):
-            code('  $0 = $1', namespace(isa), define(isa))
-        else:
-            code('  $0 = $1,', namespace(isa), define(isa))
+    for isa in isas:
+        code('  $0 = $1,', namespace(isa), define(isa))
     code('};')
 
     code('''