1 files changed, 1 insertions, 1 deletions
diff --git a/pngset.c b/pngset.c
index 86b411b33..27bddfa60 100644
--- a/pngset.c
+++ b/pngset.c
@@ -387,7 +387,7 @@ png_set_pCAL(png_structp png_ptr, png_infop info_ptr,
    info_ptr->free_me |= PNG_FREE_PCAL;
 #endif
 
-   png_memset(info_ptr->pcal_params, 0, nparams * png_sizeof(png_color));
+   png_memset(info_ptr->pcal_params, 0, (nparams + 1) * png_sizeof(png_charp));
 
    for (i = 0; i < nparams; i++)
    {