diff --git a/src/synthesizer/components/stellar.py b/src/synthesizer/components/stellar.py
index e5bf4be617..7cd3b6c0db 100644
--- a/src/synthesizer/components/stellar.py
+++ b/src/synthesizer/components/stellar.py
@@ -929,6 +929,11 @@ def get_spectra_pacman(
                     + self.spectra["old_attenuated"]._lnu
                 )
 
+            # Combine emergent spectra for young and old stars
+            self.spectra["emergent"] = (
+                self.spectra["young_emergent"] + self.spectra["old_emergent"]
+            )
+
             # Force updating of the bolometric luminosity attribute. I don't
             # know why this is necessary.
             self.spectra["young_emergent"].measure_bolometric_luminosity()