diff --git a/src/pkg/runtime/amd64/traceback.c b/src/pkg/runtime/amd64/traceback.c
index 6b758c270d0..c03a6f7cc1d 100644
--- a/src/pkg/runtime/amd64/traceback.c
+++ b/src/pkg/runtime/amd64/traceback.c
@@ -123,7 +123,7 @@ runtime·gentraceback(byte *pc0, byte *sp, byte *lr0, G *g, int32 skip, uintptr
 		else if(pcbuf != nil)
 			pcbuf[n++] = pc;
 		else {
-			if(showframe(f)) {
+			if(runtime·showframe(f)) {
 				// Print during crash.
 				//	main(0x1, 0x2, 0x3)
 				//		/home/rsc/go/src/runtime/x.go:23 +0xf
diff --git a/src/pkg/runtime/arm/traceback.c b/src/pkg/runtime/arm/traceback.c
index f99d738a932..63528104c64 100644
--- a/src/pkg/runtime/arm/traceback.c
+++ b/src/pkg/runtime/arm/traceback.c
@@ -117,7 +117,7 @@ runtime·gentraceback(byte *pc0, byte *sp, byte *lr0, G *g, int32 skip, uintptr
 		else if(pcbuf != nil)
 			pcbuf[n++] = pc;
 		else {
-			if(showframe(f)) {
+			if(runtime·showframe(f)) {
 				// Print during crash.
 				//	main(0x1, 0x2, 0x3)
 				//		/home/rsc/go/src/runtime/x.go:23 +0xf
diff --git a/src/pkg/runtime/symtab.c b/src/pkg/runtime/symtab.c
index b9035119fe2..d0468c6dd45 100644
--- a/src/pkg/runtime/symtab.c
+++ b/src/pkg/runtime/symtab.c
@@ -496,7 +496,7 @@ contains(String s, int8 *p)
 }
 
 bool
-showframe(Func *f)
+runtime·showframe(Func *f)
 {
 	// return 1;  // for debugging - show all frames
 	return contains(f->name, ".") && !hasprefix(f->name, "runtime.");