diff --git a/lib/pg_query/deparse.rb b/lib/pg_query/deparse.rb
index 0fcfbfa7..b30a4715 100644
--- a/lib/pg_query/deparse.rb
+++ b/lib/pg_query/deparse.rb
@@ -150,6 +150,8 @@ def deparse_item(item, context = nil) # rubocop:disable Metrics/CyclomaticComple
         end
       when INTEGER
         node['ival'].to_s
+      when FLOAT
+        node['str']
       else
         fail format("Can't deparse: %s: %s", type, node.inspect)
       end
diff --git a/spec/lib/pg_query/deparse_spec.rb b/spec/lib/pg_query/deparse_spec.rb
index 1f7db3a1..071331b5 100644
--- a/spec/lib/pg_query/deparse_spec.rb
+++ b/spec/lib/pg_query/deparse_spec.rb
@@ -221,6 +221,11 @@
         let(:query) { 'SELECT * FROM "x" OFFSET 50' }
         it { is_expected.to eq query }
       end
+
+      context 'FLOAT' do
+        let(:query) { 'SELECT "amount" * 0.5' }
+        it { is_expected.to eq query }
+      end
     end
 
     context 'type cast' do