diff --git a/compiler/characterizer/stimuli.py b/compiler/characterizer/stimuli.py
index 45997b7e..c4aa92a9 100644
--- a/compiler/characterizer/stimuli.py
+++ b/compiler/characterizer/stimuli.py
@@ -410,7 +410,7 @@ class stimuli():
         # FIXME: Should use verify/run_script.py here but run_script doesn't return
         # the return code of the subprocess. File names might also mismatch.
         from openram import CONDA_HOME
-        cmd = "source {0}/bin/activate && {1} && conda deactivate".format(CONDA_HOME, cmd)
+        cmd = "/bin/bash -c 'source {0}/bin/activate && {1} && conda deactivate'".format(CONDA_HOME, cmd)
         debug.info(2, cmd)
         proc = subprocess.run(cmd, stdout=spice_stdout, stderr=spice_stderr, shell=True)