diff --git a/wsutil/crc32.c b/wsutil/crc32.c
index c0e05dc272..eb4a9b1025 100644
--- a/wsutil/crc32.c
+++ b/wsutil/crc32.c
@@ -173,7 +173,7 @@ static const guint32 crc32_ccitt_table[256] = {
 guint32
 crc32c_table_lookup (guchar pos)
 {
-  return crc32_ccitt_table[pos];
+  return crc32c_table[pos];
 }
 
 guint32
diff --git a/wsutil/crc32.h b/wsutil/crc32.h
index d77a9d64cf..854f5fa035 100644
--- a/wsutil/crc32.h
+++ b/wsutil/crc32.h
@@ -43,8 +43,13 @@ extern "C" {
 
 #define CRC32C(c,d) (c=(c>>8)^crc32c_table_lookup((c^(d))&0xFF))
 
-guint32 crc32c_table_lookup (guchar pos);
-guint32 crc32_ccitt_table_lookup (guchar pos);
+/** Lookup the crc value in the crc32c_table
+ @param pos Position in the table. */
+extern guint32 crc32c_table_lookup (guchar pos);
+
+/** Lookup the crc value in the crc32_ccitt_table
+ @param pos Position in the table. */
+extern guint32 crc32_ccitt_table_lookup (guchar pos);
 
 /** Compute CRC32C checksum of a buffer of data.
  @param buf The buffer containing the data.