diff --git a/src/decaylanguage/data/decfile.lark b/src/decaylanguage/data/decfile.lark
index fd78653c..18f6fdfa 100644
--- a/src/decaylanguage/data/decfile.lark
+++ b/src/decaylanguage/data/decfile.lark
@@ -65,7 +65,7 @@ MODEL_NAME_AND_WS.2: MODEL_NAME _WS+
 MODEL_NAME_AND_SC.2: MODEL_NAME _WS* _SEMICOLON+
 MODEL_NAME_MULTILINE.2: MODEL_NAME NEWLINE _WS*
 
-MODEL_NAME : "BaryonPCR"|"BC_SMN"|"BC_TMN"|"BC_VHAD"|"BC_VMN"|"BCL"|"BGL"|"BLLNUL"|"BNOCB0TO4PICP"|"BNOCBPTO3HPI0"|"BNOCBPTOKSHHH"|"BS_MUMUKK"|"BSTOGLLISRFSR"|"BSTOGLLMNT"|"BT02PI_CP_ISO"|"BTO3PI_CP"|"BTODDALITZCPK"|"BToDiBaryonlnupQCD"|"BTOSLLALI"|"BTOSLLBALL"|"BTOSLLMS"|"BTOSLLMSEXT"|"BTOVLNUBALL"|"BTOXSGAMMA"|"BTOXELNU"|"BTOXSLL"|"BQTOLLLLHYPERCP"|"BQTOLLLL"|"CB3PI-MPP"|"CB3PI-P00"|"D_DALITZ"|"D_hhhh"|"D0GAMMADALITZ"|"D0MIXDALITZ"|"DToKpienu"|"ETAPRIME_DALITZ"|"ETA_DALITZ"|"ETA_FULLDALITZ"|"ETA_LLPIPI"|"ETA_PI0DALITZ"|"FLATQ2"|"FLATSQDALITZ"|"FOURBODYPHSP"|"GENERIC_DALITZ"|"GOITY_ROBERTS"|"HELAMP"|"HQET3"|"HQET2"|"HQET"|"imqp"|"ISGW2"|"ISGW"|"KS_PI0MUMU"|"Lb2Baryonlnu"|"Lb2plnuLCSR"|"Lb2plnuLQCD"|"LbAmpGen"|"LLSW"|"LNUGAMMA"|"LQCD"|"MELIKHOV"|"OMEGA_DALITZ"|"PARTWAVE"|"PHI_DALITZ"|"PHSPDECAYTIMECUT"|"PHSPFLATLIFETIME"|"PHSP"|"PI0_DALITZ"|"PROPSLPOLE"|"PTO3P"|"PVV_CPLH"|"PYCONT"|"PYTHIA"|"SLBKPOLE"|"SLL"|"SLN"|"SLPOLE"|"SSD_CP"|"SSD_DirectCP"|"SSS_CP_PNG"|"SSS_CP"|"SSS_CPT"|"STS_CP"|"STS"|"SVP_CP"|"SVP_HELAMP"|"SVP"|"SVS_CP_ISO"|"SVS_CPLH"|"SVS_CP"|"SVS_NONCPEIGEN"|"SVS"|"SVV_CPLH"|"SVV_CP"|"SVV_HELAMP"|"SVV_NONCPEIGEN"|"SVVHELCPMIX"|"TAUHADNU"|"TAULNUNU"|"TAUOLA"|"TAUSCALARNU"|"TAUVECTORNU"|"THREEBODYPHSP"|"TSS"|"TVP"|"TVS_PWAVE"|"VLL"|"VSP_PWAVE"|"VSS_BMIX"|"VSS_MIX"|"VSS"|"VTOSLL"|"VUB"|"VVPIPI"|"VVP"|"VVS_PWAVE"|"XLL"|"YMSTOYNSPIPICLEO"|"YMSTOYNSPIPICLEOBOOST"
+MODEL_NAME : "BaryonPCR"|"BC_SMN"|"BC_TMN"|"BC_VHAD"|"BC_VMN"|"BCL"|"BGL"|"BLLNUL"|"BNOCB0TO4PICP"|"BNOCBPTO3HPI0"|"BNOCBPTOKSHHH"|"BS_MUMUKK"|"BSTOGLLISRFSR"|"BSTOGLLMNT"|"BT02PI_CP_ISO"|"BTO3PI_CP"|"BTODDALITZCPK"|"BToDiBaryonlnupQCD"|"BTOSLLALI"|"BTOSLLBALL"|"BTOSLLMS"|"BTOSLLMSEXT"|"BTOVLNUBALL"|"BTOXSGAMMA"|"BTOXELNU"|"BTOXSLL"|"BQTOLLLLHYPERCP"|"BQTOLLLL"|"CB3PI-MPP"|"CB3PI-P00"|"D_DALITZ"|"D_hhhh"|"D0GAMMADALITZ"|"D0MIXDALITZ"|"DToKpienu"|"ETAPRIME_DALITZ"|"ETA_DALITZ"|"ETA_FULLDALITZ"|"ETA_LLPIPI"|"ETA_PI0DALITZ"|"FLATQ2"|"FLATSQDALITZ"|"FOURBODYPHSP"|"GENERIC_DALITZ"|"GOITY_ROBERTS"|"HELAMP"|"HQET3"|"HQET2"|"HQET"|"ISGW2"|"ISGW"|"KS_PI0MUMU"|"Lb2Baryonlnu"|"Lb2plnuLCSR"|"Lb2plnuLQCD"|"LbAmpGen"|"LLSW"|"LNUGAMMA"|"LQCD"|"MELIKHOV"|"OMEGA_DALITZ"|"PARTWAVE"|"PHI_DALITZ"|"PHSPDECAYTIMECUT"|"PHSPFLATLIFETIME"|"PHSP"|"PI0_DALITZ"|"PROPSLPOLE"|"PTO3P"|"PVV_CPLH"|"PYCONT"|"PYTHIA"|"SLBKPOLE"|"SLL"|"SLN"|"SLPOLE"|"SSD_CP"|"SSD_DirectCP"|"SSS_CP_PNG"|"SSS_CP"|"SSS_CPT"|"STS_CP"|"STS"|"SVP_CP"|"SVP_HELAMP"|"SVP"|"SVS_CP_ISO"|"SVS_CPLH"|"SVS_CP"|"SVS_NONCPEIGEN"|"SVS"|"SVV_CPLH"|"SVV_CP"|"SVV_HELAMP"|"SVV_NONCPEIGEN"|"SVVHELCPMIX"|"TAUHADNU"|"TAULNUNU"|"TAUOLA"|"TAUSCALARNU"|"TAUVECTORNU"|"THREEBODYPHSP"|"TSS"|"TVP"|"TVS_PWAVE"|"VLL"|"VSP_PWAVE"|"VSS_BMIX"|"VSS_MIX"|"VSS"|"VTOSLL"|"VUB"|"VVPIPI"|"VVP"|"VVS_PWAVE"|"XLL"|"YMSTOYNSPIPICLEO"|"YMSTOYNSPIPICLEOBOOST"
 
 // model : model_generic
 // model_helamp : "HELAMP" (SIGNED_NUMBER SIGNED_NUMBER)+
diff --git a/src/decaylanguage/dec/enums.py b/src/decaylanguage/dec/enums.py
index 946a8d8e..dc9ab26a 100644
--- a/src/decaylanguage/dec/enums.py
+++ b/src/decaylanguage/dec/enums.py
@@ -69,7 +69,6 @@ class PhotosEnum(IntEnum):
     "HQET3",
     "HQET2",
     "HQET",
-    "imqp",
     "ISGW2",
     "ISGW",
     "KS_PI0MUMU",
diff --git a/tests/dec/test_known_decay_models.py b/tests/dec/test_known_decay_models.py
index 9df00058..15a42027 100644
--- a/tests/dec/test_known_decay_models.py
+++ b/tests/dec/test_known_decay_models.py
@@ -135,7 +135,6 @@ def test_lark_file_model_list_consistency():
     ("HQET3", [0.920, 1.205, 1.21, 1.404, 0.854]),
     ("HQET2", [1.18, 1.074]),
     # ("HQET", ""),
-    # ("imqp", ""),
     # ("ISGW2", ""),
     # ("ISGW", ""),
     # ("KS_PI0MUMU", ""),
@@ -310,7 +309,7 @@ def test_lark_file_model_list_consistency():
 
 def test_parsing_of_all_known_models_are_tested():
     assert (
-        len(parsed_models) == len(known_decay_models) - 52
+        len(parsed_models) == len(known_decay_models) - 51
     )  # subtract for now the number of models not yet tested