diff --git a/examples/kitchen-sink.yaml b/examples/kitchen-sink.yaml
index d5ed506f..70df7ab9 100644
--- a/examples/kitchen-sink.yaml
+++ b/examples/kitchen-sink.yaml
@@ -372,6 +372,7 @@ meter_provider:
         # If omitted or null, all instrument names match.
         instrument_name: my-instrument
         # Configure instrument type selection criteria.
+        # Values include: counter, gauge, histogram, observable_counter, observable_gauge, observable_up_down_counter, up_down_counter.
         # If omitted or null, all instrument types match.
         instrument_type: histogram
         # Configure the instrument unit selection criteria.
diff --git a/schema/meter_provider.json b/schema/meter_provider.json
index a30f7134..a983b753 100644
--- a/schema/meter_provider.json
+++ b/schema/meter_provider.json
@@ -331,6 +331,7 @@
             "type": ["string", "null"],
             "enum": [
                 "counter",
+                "gauge",
                 "histogram",
                 "observable_counter",
                 "observable_gauge",
diff --git a/schema/type_descriptions.yaml b/schema/type_descriptions.yaml
index 20ff16cc..f4244c0d 100644
--- a/schema/type_descriptions.yaml
+++ b/schema/type_descriptions.yaml
@@ -495,6 +495,8 @@
     instrument_type: >
       Configure instrument type selection criteria.
       
+      Values include: counter, gauge, histogram, observable_counter, observable_gauge, observable_up_down_counter, up_down_counter.
+      
       If omitted or null, all instrument types match.
     unit: >
       Configure the instrument unit selection criteria.