diff --git a/Examples/test-suite/chicken/Makefile.in b/Examples/test-suite/chicken/Makefile.in
index 26e025fb8..434b5a2d6 100644
--- a/Examples/test-suite/chicken/Makefile.in
+++ b/Examples/test-suite/chicken/Makefile.in
@@ -83,6 +83,7 @@ run_testcase = \
 
 # Clean
 %.clean:
+	
 
 clean:
 	$(MAKE) -f $(top_builddir)/$(EXAMPLES)/Makefile chicken_clean
diff --git a/Examples/test-suite/mzscheme/Makefile.in b/Examples/test-suite/mzscheme/Makefile.in
index 1bfa71da0..39eecaf90 100644
--- a/Examples/test-suite/mzscheme/Makefile.in
+++ b/Examples/test-suite/mzscheme/Makefile.in
@@ -40,5 +40,6 @@ run_testcase = \
 # Clean
 %.clean:
 	
+
 clean:
 	$(MAKE) -f $(top_builddir)/$(EXAMPLES)/Makefile mzscheme_clean
diff --git a/Examples/test-suite/ruby/Makefile.in b/Examples/test-suite/ruby/Makefile.in
index 089606e07..80ae4c427 100644
--- a/Examples/test-suite/ruby/Makefile.in
+++ b/Examples/test-suite/ruby/Makefile.in
@@ -52,6 +52,7 @@ run_testcase = \
 
 # Clean
 %.clean:
+	
 
 clean:
 	$(MAKE) -f $(top_builddir)/$(EXAMPLES)/Makefile ruby_clean
diff --git a/Examples/test-suite/tcl/Makefile.in b/Examples/test-suite/tcl/Makefile.in
index ed258b7af..ae297589b 100644
--- a/Examples/test-suite/tcl/Makefile.in
+++ b/Examples/test-suite/tcl/Makefile.in
@@ -53,6 +53,7 @@ run_testcase = \
 
 # Clean
 %.clean:
+	
 
 clean:
 	$(MAKE) -f $(top_builddir)/$(EXAMPLES)/Makefile tcl_clean