diff --git a/src/Makefile b/src/Makefile
index 1bef418e44..f026d4adb5 100755
--- a/src/Makefile
+++ b/src/Makefile
@@ -14,7 +14,7 @@ OBJ = 	$(SRC:.cpp=.o)
 # Package variables
 
 PACKAGE = asphere class2 colloid dipole dpd granular \
-	  kspace manybody meam molecule opt poems xtc sd
+	  kspace manybody meam molecule opt poems xtc
 
 PACKUSER = user-ackland user-cg-cmm user-ewaldn user-smd
 
diff --git a/src/style.h b/src/style.h
index ddc337c5f4..fe84d72531 100644
--- a/src/style.h
+++ b/src/style.h
@@ -363,8 +363,6 @@ RegionStyle(union,RegUnion)
 #include "style_poems.h"
 #include "style_xtc.h"
 
-#include "style_sd.h"
-
 // user add-ons: individual classes and packages
 
 #include "style_user.h"