diff --git a/JASP-Engine/JASP-Engine.pro b/JASP-Engine/JASP-Engine.pro
index 3bf44d7..6fe7a09 100644
--- a/JASP-Engine/JASP-Engine.pro
+++ b/JASP-Engine/JASP-Engine.pro
@@ -72,6 +72,7 @@ INCLUDEPATH += \
 
 linux:INCLUDEPATH += \
 	/usr/share/R/include \
+	/usr/include/R \
 	$$_R_HOME/site-library/RInside/include \
 	$$_R_HOME/site-library/Rcpp/include