diff --git a/geminidr/core/primitives_spect.py b/geminidr/core/primitives_spect.py
index 83fe11e39..9d621c4a4 100644
--- a/geminidr/core/primitives_spect.py
+++ b/geminidr/core/primitives_spect.py
@@ -2331,7 +2331,8 @@ def extractSpectra(self, adinputs=None, **params):
             ad_spec.filename = ad.filename
             ad_spec.orig_filename = ad.orig_filename
             skysub_needed = (subtract_sky and
-                             self.timestamp_keys['skyCorrectFromSlit'] not in ad.phu)
+                             (self.timestamp_keys['subtractSky'] not in ad.phu and
+                              self.timestamp_keys['skyCorrectFromSlit'] not in ad.phu))
             if skysub_needed:
                 log.stdinfo(f"Sky subtraction has not been performed on {ad.filename}"
                             " - extracting sky from separate apertures")