diff --git a/configure.ac b/configure.ac
index 0ee5a4c576..facdb5f3c3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3472,6 +3472,8 @@ EFL_INTERNAL_DEPEND_PKG([ECORE_DRM], [eina])
 EFL_DEPEND_PKG([ECORE_DRM], [DRM], [libdrm >= 2.4 xkbcommon >= 0.3.0 gbm])
 EFL_DEPEND_PKG([ECORE_DRM], [LIBINPUT], [libinput >= 0.6.0])
 
+EFL_ADD_LIBS([ECORE_DRM], [-lm])
+
 # API change from 0.7 to 0.8. So we define this to support both for now.
 PKG_CHECK_EXISTS([libinput >= 0.8.0],
                  [have_libinput_new="yes"],
diff --git a/src/lib/ecore_drm/ecore_drm_evdev.c b/src/lib/ecore_drm/ecore_drm_evdev.c
index 1f21dd6b76..b2c2b994ec 100644
--- a/src/lib/ecore_drm/ecore_drm_evdev.c
+++ b/src/lib/ecore_drm/ecore_drm_evdev.c
@@ -4,6 +4,7 @@
 
 #include "ecore_drm_private.h"
 #include <ctype.h>
+#include <math.h>
 
 static void  _device_modifiers_update(Ecore_Drm_Evdev *edev);