diff --git a/src/data-source.cc b/src/data-source.cc
index 52de97cb..91bec20f 100644
--- a/src/data-source.cc
+++ b/src/data-source.cc
@@ -27,6 +27,7 @@
 
 #include <iostream>
 #include <sstream>
+#include <unordered_map>
 
 namespace conky {
 	namespace {
diff --git a/src/data-source.hh b/src/data-source.hh
index 38e80875..4d25852d 100644
--- a/src/data-source.hh
+++ b/src/data-source.hh
@@ -25,11 +25,8 @@
 #define DATA_SOURCE_HH
 
 #include <limits>
-#include <memory>
-#include <stdexcept>
 #include <string>
 #include <type_traits>
-#include <unordered_map>
 
 #include "luamm.hh"