diff --git a/arch/sparc/include/asm/string.h b/arch/sparc/include/asm/string.h
index c6bbc20..af6faea 100644
--- a/arch/sparc/include/asm/string.h
+++ b/arch/sparc/include/asm/string.h
@@ -40,7 +40,7 @@
 */
 
 extern int strcasecmp(const char *, const char *);
-extern int strncasecmp(const char *, const char *, int);
+extern int strncasecmp(const char *, const char *, __kernel_size_t);
 extern char *strcpy(char *, const char *);
 extern char *strncpy(char *, const char *, __kernel_size_t);
 extern __kernel_size_t strlen(const char *);