diff --git a/src/drv/hasp_drv_ft5206.cpp b/src/drv/hasp_drv_ft5206.cpp
index 72881a98..d14aacf5 100644
--- a/src/drv/hasp_drv_ft5206.cpp
+++ b/src/drv/hasp_drv_ft5206.cpp
@@ -21,7 +21,7 @@ bool IRAM_ATTR FT5206_getXY(int16_t * touchX, int16_t * touchY, bool debug)
 
     if(debug) {
         char tempString[128];
-        sprintf(tempString, "FT5206 touched x: %d y: %d\n", tp.x, tp.y);
+        sprintf(tempString, F("FT5206 touched x: %d y: %d\n"), tp.x, tp.y); // TODO: literal string
         Serial.print(tempString);
     }
 
diff --git a/src/drv/hasp_drv_gt911.cpp b/src/drv/hasp_drv_gt911.cpp
index bd14cc46..1a898ede 100644
--- a/src/drv/hasp_drv_gt911.cpp
+++ b/src/drv/hasp_drv_gt911.cpp
@@ -19,9 +19,9 @@ void IRAM_ATTR GT911_setXY(int8_t contacts, GTPoint * points)
     GT911_num_touches = contacts;
     GT911_points      = points;
 
-    Log.verbose(TAG_GUI, "Contacts: %d", contacts);
+    Log.verbose(TAG_GUI, F("Contacts: %d"), contacts);
     for(int i = 0; i < contacts; i++) {
-        Log.verbose(TAG_GUI, "C%d: #%d %d,%d s:%d", i, points[i].trackId, points[i].x, points[i].y, points[i].area);
+        Log.verbose(TAG_GUI, F("C%d: #%d %d,%d s:%d"), i, points[i].trackId, points[i].x, points[i].y, points[i].area);
         yield();
     }
 }