diff --git a/clean b/clean
index ee19f9c24..5500bf28e 100755
--- a/clean
+++ b/clean
@@ -18,6 +18,7 @@ rm ./Makefile
 rm ./rtengine/Makefile
 rm ./rtexif/Makefile
 rm ./rtgui/Makefile
+rm ./rtdata/Makefile
 
 rm ./rtengine/librtengine.so
 rm ./rtengine/librtengine.a
diff --git a/clean.bat b/clean.bat
index 47b536580..e3ff61167 100755
--- a/clean.bat
+++ b/clean.bat
@@ -12,6 +12,7 @@ rm ./Makefile
 rm ./rtengine/Makefile
 rm ./rtexif/Makefile
 rm ./rtgui/Makefile
+rm ./rtdata/Makefile
 rm ./rtengine/librtengine.so
 rm ./rtgui/rth
 rm ./rtexif/librtexif.a
diff --git a/clean.sh b/clean.sh
index ee19f9c24..5500bf28e 100755
--- a/clean.sh
+++ b/clean.sh
@@ -18,6 +18,7 @@ rm ./Makefile
 rm ./rtengine/Makefile
 rm ./rtexif/Makefile
 rm ./rtgui/Makefile
+rm ./rtdata/Makefile
 
 rm ./rtengine/librtengine.so
 rm ./rtengine/librtengine.a