diff --git a/drivers/comparator/comparator_nrf_comp.c b/drivers/comparator/comparator_nrf_comp.c
index b60aef17987..311a864303b 100644
--- a/drivers/comparator/comparator_nrf_comp.c
+++ b/drivers/comparator/comparator_nrf_comp.c
@@ -17,16 +17,16 @@
 	_CONCAT(COMP_NRF_COMP_REFSEL_, DT_INST_STRING_TOKEN(inst, refsel))
 
 #define SHIM_NRF_COMP_DT_INST_REFSEL_IS_AREF(inst) \
-	DT_INST_ENUM_HAS_VALUE(inst, refsel, AREF)
+	DT_INST_ENUM_HAS_VALUE(inst, refsel, aref)
 
 #define SHIM_NRF_COMP_DT_INST_EXTREFSEL(inst) \
 	_CONCAT(COMP_NRF_COMP_EXTREFSEL_, DT_INST_STRING_TOKEN(inst, extrefsel))
 
 #define SHIM_NRF_COMP_DT_INST_MAIN_MODE_IS_SE(inst) \
-	DT_INST_ENUM_HAS_VALUE(inst, main_mode, SE)
+	DT_INST_ENUM_HAS_VALUE(inst, main_mode, se)
 
 #define SHIM_NRF_COMP_DT_INST_MAIN_MODE_IS_DIFF(inst) \
-	DT_INST_ENUM_HAS_VALUE(inst, main_mode, DIFF)
+	DT_INST_ENUM_HAS_VALUE(inst, main_mode, diff)
 
 #define SHIM_NRF_COMP_DT_INST_TH_DOWN(inst) \
 	DT_INST_PROP(inst, th_down)
diff --git a/drivers/comparator/comparator_nrf_lpcomp.c b/drivers/comparator/comparator_nrf_lpcomp.c
index a3de2b8069c..623c7adacd4 100644
--- a/drivers/comparator/comparator_nrf_lpcomp.c
+++ b/drivers/comparator/comparator_nrf_lpcomp.c
@@ -19,7 +19,7 @@
 	_CONCAT(COMP_NRF_LPCOMP_REFSEL_, DT_INST_STRING_TOKEN(inst, refsel))
 
 #define SHIM_NRF_LPCOMP_DT_INST_REFSEL_IS_AREF(inst) \
-	DT_INST_ENUM_HAS_VALUE(inst, refsel, AREF)
+	DT_INST_ENUM_HAS_VALUE(inst, refsel, aref)
 
 #define SHIM_NRF_LPCOMP_DT_INST_EXTREFSEL(inst) \
 	_CONCAT(COMP_NRF_LPCOMP_EXTREFSEL_, DT_INST_STRING_TOKEN(inst, extrefsel))
diff --git a/scripts/dts/gen_defines.py b/scripts/dts/gen_defines.py
index 65ae177b63c..ee6a88dd1d1 100755
--- a/scripts/dts/gen_defines.py
+++ b/scripts/dts/gen_defines.py
@@ -679,6 +679,9 @@ def enum_macros(prop: edtlib.Property, macro: str):
     val = prop.val_as_tokens if spec.enum_tokenizable else (prop.val if isinstance(prop.val, list) else [prop.val])
 
     for i, subval in enumerate(val):
+        # make sure the subval is a formated right.
+        if isinstance(subval, str):
+            subval = str2ident(subval)
         # DT_N_<node-id>_P_<prop-id>_IDX_<i>_EXISTS
         ret[f"{macro}_IDX_{i}_EXISTS"] = 1
         # DT_N_<node-id>_P_<prop-id>_IDX_<i>_ENUM_VAL_<val>_EXISTS 1