diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 981ee1405e..d360c7c4b8 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2018-08-29  Tom Tromey  <tom@tromey.com>
+
+	* csky-tdep.c (csky_analyze_prologue): Use
+	core_addr_to_string_nz.
+
 2018-08-29  Tom Tromey  <tom@tromey.com>
 
 	* windows-nat.c (struct xlate_exception) <them>: Change type to
diff --git a/gdb/csky-tdep.c b/gdb/csky-tdep.c
index 972ac59aff..95bcead877 100644
--- a/gdb/csky-tdep.c
+++ b/gdb/csky-tdep.c
@@ -1103,8 +1103,8 @@ csky_analyze_prologue (struct gdbarch *gdbarch,
 					  "csky: found stack adjustment of"
 					  " 0x%x bytes.\n", adjust);
 		      fprintf_unfiltered (gdb_stdlog,
-					  "csky: skipping to new address "
-					  "0x%lx\n", addr);
+					  "csky: skipping to new address %s\n",
+					  core_addr_to_string_nz (addr));
 		      fprintf_unfiltered (gdb_stdlog,
 					  "csky: continuing\n");
 		    }
@@ -1415,8 +1415,8 @@ csky_analyze_prologue (struct gdbarch *gdbarch,
 					  "found stack adjustment of 0x%x"
 					  " bytes.\n", adjust);
 		      fprintf_unfiltered (gdb_stdlog, "csky: "
-					  "skipping to new address 0x%lx\n",
-					  addr);
+					  "skipping to new address %s\n",
+					  core_addr_to_string_nz (addr));
 		      fprintf_unfiltered (gdb_stdlog, "csky: continuing\n");
 		    }
 		  continue;