diff --git a/configure.ac b/configure.ac
index e2376b0d..caceb445 100644
--- a/configure.ac
+++ b/configure.ac
@@ -70,6 +70,7 @@ AS_IF([test "x${GCC}" = "xyes"],
       VKD3D_CHECK_CFLAGS([-Wtype-limits])
       VKD3D_CHECK_CFLAGS([-Wunused-but-set-parameter])
       VKD3D_CHECK_CFLAGS([-Wvla])
+      VKD3D_CHECK_CFLAGS([-Wwrite-strings])
       VKD3D_CHECK_CFLAGS([-Wl,--no-undefined])])
 
 dnl Check for cross compilers
diff --git a/libs/vkd3d-shader/hlsl.c b/libs/vkd3d-shader/hlsl.c
index 978c414d..0e75edd4 100644
--- a/libs/vkd3d-shader/hlsl.c
+++ b/libs/vkd3d-shader/hlsl.c
@@ -3403,7 +3403,7 @@ static void declare_predefined_types(struct hlsl_ctx *ctx)
 
     static const struct
     {
-        char *name;
+        const char *name;
         unsigned int version;
     }
     technique_types[] =
diff --git a/programs/vkd3d-compiler/main.c b/programs/vkd3d-compiler/main.c
index 3fa54aad..fdb1cade 100644
--- a/programs/vkd3d-compiler/main.c
+++ b/programs/vkd3d-compiler/main.c
@@ -295,7 +295,7 @@ static bool parse_formatting(uint32_t *formatting, bool *colour, char *arg)
 {
     static const struct formatting_option
     {
-        char *name;
+        const char *name;
         enum vkd3d_shader_compile_option_formatting_flags value;
     }
     opts[] =
@@ -694,7 +694,7 @@ static bool has_colour(FILE *f)
     setupterm(NULL, fileno(f), &ret);
     if (ret != 1)
         return false;
-    supported = !!tigetstr("setaf");
+    supported = !!tigetstr((char *)"setaf");
     del_curterm(cur_term);
 
     return supported;
diff --git a/programs/vkd3d-dxbc/main.c b/programs/vkd3d-dxbc/main.c
index b6786b71..e76bcb63 100644
--- a/programs/vkd3d-dxbc/main.c
+++ b/programs/vkd3d-dxbc/main.c
@@ -71,7 +71,7 @@ static bool has_colour(void)
     setupterm(NULL, fileno(stdout), &ret);
     if (ret != 1)
         return false;
-    supported = !!tigetstr("setaf");
+    supported = !!tigetstr((char *)"setaf");
     del_curterm(cur_term);
 
     return supported;