diff --git a/caca/mono9.data b/caca/mono9.data
index 06c71a6..9d71d51 100644
--- a/caca/mono9.data
+++ b/caca/mono9.data
@@ -5,7 +5,7 @@
  */
 
 static size_t const mono9_size = 246854;
-static uint8_t mono9_data[246854] =
+static uint8_t const mono9_data[246854] =
 {
 /* file: */
 0xCA,0xCA, /* caca_header */
diff --git a/caca/monobold12.data b/caca/monobold12.data
index 1aed61a..b6718f4 100644
--- a/caca/monobold12.data
+++ b/caca/monobold12.data
@@ -5,7 +5,7 @@
  */
 
 static size_t const monobold12_size = 419205;
-static uint8_t monobold12_data[419205] =
+static uint8_t const monobold12_data[419205] =
 {
 /* file: */
 0xCA,0xCA, /* caca_header */
diff --git a/tools/makefont.c b/tools/makefont.c
index db7b57a..c327280 100644
--- a/tools/makefont.c
+++ b/tools/makefont.c
@@ -188,7 +188,7 @@ int main(int argc, char *argv[])
 
     printf("static size_t const %s_size = %i;\n",
            prefix, 4 + control_size + data_size);
-    printf("static uint8_t %s_data[%i] =\n",
+    printf("static uint8_t const %s_data[%i] =\n",
            prefix, 4 + control_size + data_size);
     printf("{\n");