diff --git a/aria-simd.cpp b/aria-simd.cpp
index 4e4fbacf..51ccecfd 100644
--- a/aria-simd.cpp
+++ b/aria-simd.cpp
@@ -1,5 +1,5 @@
-// crc-simd.cpp - written and placed in the public domain by
-//                Jeffrey Walton, Uri Blumenthal and Marcel Raad.
+// aria-simd.cpp - written and placed in the public domain by
+//                 Jeffrey Walton, Uri Blumenthal and Marcel Raad.
 //
 //    This source file uses intrinsics to gain access to ARMv7a and
 //    ARMv8a NEON instructions. A separate source file is needed
diff --git a/blake2-simd.cpp b/blake2-simd.cpp
index 924cf7b3..32d81cab 100644
--- a/blake2-simd.cpp
+++ b/blake2-simd.cpp
@@ -1,10 +1,10 @@
-// sha-simd.cpp - written and placed in the public domain by
-//                Jeffrey Walton, Uri Blumenthal and Marcel Raad.
+// blake2-simd.cpp - written and placed in the public domain by
+//                   Jeffrey Walton, Uri Blumenthal and Marcel Raad.
 //
-//    This source file uses intrinsics to gain access to SHA-NI and
-//    ARMv8a SHA instructions. A separate source file is needed
-//    because additional CXXFLAGS are required to enable the
-//    appropriate instructions sets in some build configurations.
+//    This source file uses intrinsics to gain access to ARMv7a/ARMv8a
+//    NEON and SSE4.2 instructions. A separate source file is needed
+//    because additional CXXFLAGS are required to enable the appropriate
+//    instructions sets in some build configurations.
 
 #include "pch.h"
 #include "config.h"
diff --git a/gcm-simd.cpp b/gcm-simd.cpp
index d4b7eb4c..12118128 100644
--- a/gcm-simd.cpp
+++ b/gcm-simd.cpp
@@ -1,4 +1,4 @@
-// crc-simd.cpp - written and placed in the public domain by
+// gcm-simd.cpp - written and placed in the public domain by
 //                Jeffrey Walton, Uri Blumenthal and Marcel Raad.
 //
 //    This source file uses intrinsics to gain access to SSE4.2 and