diff --git a/make-includes/build_lecture_rules.make b/make-includes/build_lecture_rules.make
index 5d1243e..3763a13 100755
--- a/make-includes/build_lecture_rules.make
+++ b/make-includes/build_lecture_rules.make
@@ -14,7 +14,7 @@
 #
 # Add standard file suffixes.
 #
-.SUFFIXES: .pdf .tex .dvi .graffle .png .tif .plo .jpg .pict .eps .ps
+.SUFFIXES: .svg .pdf .tex .dvi .graffle .png .tif .plo .jpg .pict .eps .ps
 
 
 ################################################################################