diff --git a/src/cmd/cc/bv.c b/src/cmd/cc/bv.c
index 38d9e4377c..51b7f4076f 100644
--- a/src/cmd/cc/bv.c
+++ b/src/cmd/cc/bv.c
@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 #include <u.h>
-#include <libc.h>
 #include "cc.h"
 
 enum {
diff --git a/src/cmd/dist/build.c b/src/cmd/dist/build.c
index f02bfd8e71..f46771d20d 100644
--- a/src/cmd/dist/build.c
+++ b/src/cmd/dist/build.c
@@ -932,6 +932,8 @@ install(char *dir)
 					vadd(&compile, "-Bp+");
 				vadd(&compile, bpathf(&b, "-I%s/include/plan9", goroot));
 				vadd(&compile, bpathf(&b, "-I%s/include/plan9/%s", goroot, gohostarch));
+				// Work around Plan 9 C compiler's handling of #include with .. path.
+				vadd(&compile, bpathf(&b, "-I%s/src/cmd/ld", goroot));
 			} else {
 				vcopy(&compile, gccargs.p, gccargs.len);
 				vadd(&compile, "-c");