diff --git a/run_tests.py b/run_tests.py
index 0cb78ed6..ea53b432 100755
--- a/run_tests.py
+++ b/run_tests.py
@@ -265,11 +265,9 @@ def run_test(filename):
                     gcc_arch = '-m64'
 
                 gcc_isa=""
-                if options.target == 'sse2' or options.target == 'sse2-x2':
-                    gcc_isa = '-msse3'
-                if options.target == 'sse4' or options.target == 'sse4-x2' or options.target == 'generic-4':
+                if options.target == 'generic-4':
                     gcc_isa = '-msse4.2'
-                if options.target == 'avx' or options.target == 'avx-x2' or options.target == 'generic-8':
+                if options.target == 'generic-8':
                     gcc_isa = '-mavx'
                 if (options.target == 'generic-16' or options.target == 'generic-32' or options.target == 'generic-64') \
                         and (options.include_file.find("knc.h")!=-1 or options.include_file.find("knc2x.h")!=-1):