diff --git a/sys/amd64/amd64/identcpu.c b/sys/amd64/amd64/identcpu.c
index f413fb5691a..cb01f6fb4d7 100644
--- a/sys/amd64/amd64/identcpu.c
+++ b/sys/amd64/amd64/identcpu.c
@@ -296,8 +296,8 @@ printcpuinfo(void)
 				"\034RDTSCP"	/* RDTSCP */
 				"\035<b28>"	/* Undefined */
 				"\036LM"	/* 64 bit long mode */
-				"\0373DNow+"	/* AMD 3DNow! Extensions */
-				"\0403DNow"	/* AMD 3DNow! */
+				"\0373DNow!+"	/* AMD 3DNow! Extensions */
+				"\0403DNow!"	/* AMD 3DNow! */
 				);
 			}
 
diff --git a/sys/i386/i386/identcpu.c b/sys/i386/i386/identcpu.c
index 3acaf04086d..89125fc9f2d 100644
--- a/sys/i386/i386/identcpu.c
+++ b/sys/i386/i386/identcpu.c
@@ -815,8 +815,8 @@ printcpuinfo(void)
 				"\034RDTSCP"	/* RDTSCP */
 				"\035<b28>"	/* Undefined */
 				"\036LM"	/* 64 bit long mode */
-				"\0373DNow+"	/* AMD 3DNow! Extensions */
-				"\0403DNow"	/* AMD 3DNow! */
+				"\0373DNow!+"	/* AMD 3DNow! Extensions */
+				"\0403DNow!"	/* AMD 3DNow! */
 				);
 			}