diff --git a/src/base128.c b/src/base128.c
index 7c3520e..fbf83d4 100644
--- a/src/base128.c
+++ b/src/base128.c
@@ -34,8 +34,8 @@
 
 #include "encoding.h"
 
-#define BLKSIZE_RAW 7
-#define BLKSIZE_ENC 8
+#define BASE128_BLKSIZE_RAW 7
+#define BASE128_BLKSIZE_ENC 8
 
 /* Don't use '-' (restricted to middle of labels), prefer iso_8859-1
  * accent chars since they might readily be entered in normal use,
@@ -56,16 +56,6 @@ static int base128_handles_dots(void)
 	return 0;
 }
 
-static int base128_blksize_raw(void)
-{
-	return BLKSIZE_RAW;
-}
-
-static int base128_blksize_enc(void)
-{
-	return BLKSIZE_ENC;
-}
-
 inline static void base128_reverse_init(void)
 {
 	int i;
@@ -271,6 +261,6 @@ const struct encoder base128_ops = {
 	.places_dots = base128_handles_dots,
 	.eats_dots = base128_handles_dots,
 
-	.blocksize_raw = base128_blksize_raw,
-	.blocksize_encoded = base128_blksize_enc
+	.blocksize_raw = BASE128_BLKSIZE_RAW,
+	.blocksize_encoded = BASE128_BLKSIZE_ENC,
 };
diff --git a/src/base32.c b/src/base32.c
index e35867f..2662729 100644
--- a/src/base32.c
+++ b/src/base32.c
@@ -22,8 +22,8 @@
 
 #include "encoding.h"
 
-#define BLKSIZE_RAW 5
-#define BLKSIZE_ENC 8
+#define BASE32_BLKSIZE_RAW 5
+#define BASE32_BLKSIZE_ENC 8
 
 static const char cb32[] =
 	"abcdefghijklmnopqrstuvwxyz012345";
@@ -37,16 +37,6 @@ static int base32_handles_dots(void)
 	return 0;
 }
 
-static int base32_blksize_raw(void)
-{
-	return BLKSIZE_RAW;
-}
-
-static int base32_blksize_enc(void)
-{
-	return BLKSIZE_ENC;
-}
-
 inline static void base32_reverse_init(void)
 {
 	int i;
@@ -248,6 +238,6 @@ const struct encoder base32_ops = {
 	.places_dots = base32_handles_dots,
 	.eats_dots = base32_handles_dots,
 
-	.blocksize_raw = base32_blksize_raw,
-	.blocksize_encoded = base32_blksize_enc,
+	.blocksize_raw = BASE32_BLKSIZE_RAW,
+	.blocksize_encoded = BASE32_BLKSIZE_ENC,
 };
diff --git a/src/base64.c b/src/base64.c
index 525e4dc..abad891 100644
--- a/src/base64.c
+++ b/src/base64.c
@@ -22,8 +22,8 @@
 
 #include "encoding.h"
 
-#define BLKSIZE_RAW 3
-#define BLKSIZE_ENC 4
+#define BASE64_BLKSIZE_RAW 3
+#define BASE64_BLKSIZE_ENC 4
 
 /* Note: the "unofficial" char is last here, which means that the \377 pattern
    in DOWNCODECCHECK1 ('Y' request) will properly test it. */
@@ -37,16 +37,6 @@ static int base64_handles_dots(void)
 	return 0;
 }
 
-static int base64_blksize_raw(void)
-{
-	return BLKSIZE_RAW;
-}
-
-static int base64_blksize_enc(void)
-{
-	return BLKSIZE_ENC;
-}
-
 inline static void base64_reverse_init(void)
 {
 	int i;
@@ -186,6 +176,6 @@ const struct encoder base64_ops = {
 	.places_dots = base64_handles_dots,
 	.eats_dots = base64_handles_dots,
 
-	.blocksize_raw = base64_blksize_raw,
-	.blocksize_encoded = base64_blksize_enc,
+	.blocksize_raw = BASE64_BLKSIZE_RAW,
+	.blocksize_encoded = BASE64_BLKSIZE_ENC,
 };
diff --git a/src/encoding.h b/src/encoding.h
index 49c7424..5d4c65c 100644
--- a/src/encoding.h
+++ b/src/encoding.h
@@ -39,8 +39,8 @@ struct encoder {
 	int (*places_dots)(void);
 	int (*eats_dots)(void);
 
-	int (*blocksize_raw)(void);
-	int (*blocksize_encoded)(void);
+	const int blocksize_raw;
+	const int blocksize_encoded;
 };
 
 int build_hostname(char *, size_t, const char *, const size_t, const char *, const struct encoder *, int);