diff --git a/rtengine/LUT.h b/rtengine/LUT.h
index f2f0c3c26..60ccd8b91 100644
--- a/rtengine/LUT.h
+++ b/rtengine/LUT.h
@@ -68,6 +68,7 @@
 
 #include <cstring>
 #ifndef NDEBUG
+#include <glibmm.h>
 #include <fstream>
 #endif
 
diff --git a/rtengine/color.cc b/rtengine/color.cc
index 538f896b5..96c9bb19b 100644
--- a/rtengine/color.cc
+++ b/rtengine/color.cc
@@ -17,7 +17,7 @@
 *  along with RawTherapee.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-#include "rt_math.h"
+#include "rtengine.h"
 #include "color.h"
 #include "iccmatrices.h"
 #include "mytime.h"
diff --git a/rtengine/rt_math.h b/rtengine/rt_math.h
index 6a120859e..139c98fbe 100644
--- a/rtengine/rt_math.h
+++ b/rtengine/rt_math.h
@@ -3,7 +3,6 @@
 #include <cmath>
 #include <algorithm>
 
-#include "rtengine.h"
 
 namespace rtengine {
 	static const int MAXVAL = 0xffff;