diff --git a/libc/arch-arm/generic/bionic/memcpy.S b/libc/arch-arm/generic/bionic/memcpy.S
index 5d55aae..87ebc44 100644
--- a/libc/arch-arm/generic/bionic/memcpy.S
+++ b/libc/arch-arm/generic/bionic/memcpy.S
@@ -401,4 +401,4 @@
 
         .data
 error_string:
-        .string     "memcpy prevented write past end of buffer"
+        .string     "memcpy: prevented write past end of buffer"
diff --git a/libc/arch-arm/generic/bionic/memset.S b/libc/arch-arm/generic/bionic/memset.S
index 435d83c..baeb519 100644
--- a/libc/arch-arm/generic/bionic/memset.S
+++ b/libc/arch-arm/generic/bionic/memset.S
@@ -130,4 +130,4 @@
 
         .data
 error_string:
-        .string     "memset prevented write past end of buffer"
+        .string     "memset: prevented write past end of buffer"