diff --git a/spectractor/fit/fit_spectrogram.py b/spectractor/fit/fit_spectrogram.py
index e7578a66..78fcf5a0 100644
--- a/spectractor/fit/fit_spectrogram.py
+++ b/spectractor/fit/fit_spectrogram.py
@@ -69,6 +69,7 @@ def __init__(self, spectrum, atmgrid_file_name="", fit_angstrom_exponent=False,
                 if not is_gaiaspec:
                     if not is_gaia_full:
                         raise ValueError(f"{spectrum.target.label=} must be a CALSPEC or GAIA star.")
+        else:
             raise ValueError(f"{spectrum.target.label=} must be a CALSPEC star according to getCalspec package.")
         self.spectrum = spectrum
         self.filename = spectrum.filename.replace("spectrum", "spectrogram")
diff --git a/spectractor/fit/fit_spectrum.py b/spectractor/fit/fit_spectrum.py
index 03907f06..3917490f 100644
--- a/spectractor/fit/fit_spectrum.py
+++ b/spectractor/fit/fit_spectrum.py
@@ -70,7 +70,8 @@ def __init__(self, spectrum, atmgrid_file_name="", fit_angstrom_exponent=False,
                 if not is_gaiaspec:
                     if not is_gaia_full:
                         raise ValueError(f"{spectrum.target.label=} must be a CALSPEC or GAIA star.")
-            raise ValueError(f"{spectrum.target.label=} must be a CALSPEC star according to getCalspec package.")
+            else:
+                raise ValueError(f"{spectrum.target.label=} must be a CALSPEC star according to getCalspec package.")
         self.spectrum = spectrum
         p = np.array([1, 0, 0.05, 1.2, 400, 5, 1, self.spectrum.header['D2CCD'], self.spectrum.header['PIXSHIFT'], 0])
         fixed = [False] * p.size