diff --git a/main/peripherals/sensors/dht22.cpp b/main/peripherals/sensors/dht22.cpp
index 83581dd44510b9e5f7796e9d56db934da8c6e078..13bc285e2358e149eb49d5f97de79f6093607ee6 100644
--- a/main/peripherals/sensors/dht22.cpp
+++ b/main/peripherals/sensors/dht22.cpp
@@ -13,7 +13,7 @@ namespace qthing {
 
 
 
-    void add_dht22(gpio_num_t gpio, std::string name, dht22_measure_callback_t callback) {
+    void add_dht22(gpio_num_t gpio, std::string name, qthing::dht22_measure_callback_t callback) {
 
     }
 
diff --git a/main/qthing.h b/main/qthing.h
index 33d51667928bf446c11204e4eb700fa37e813f7e..d313fa52190c80354c5ca768d2f92598eb21710b 100644
--- a/main/qthing.h
+++ b/main/qthing.h
@@ -103,7 +103,7 @@ namespace qthing {
     typedef std::function<void(dht22_data_t)> dht22_measure_callback_t;
     
     void add_dht22(gpio_num_t gpio, std::string name);
-    void add_dht22(gpio_num_t gpio, std::string name, dht22_measure_callback_t callback);
+    void add_dht22(gpio_num_t gpio, std::string name, qthing::dht22_measure_callback_t callback);
 }
 
 #endif