diff --git a/include/ktx.h b/include/ktx.h
index 267d716c..e0709ce3 100644
--- a/include/ktx.h
+++ b/include/ktx.h
@@ -182,6 +182,8 @@ typedef enum ktx_error_code_e {
     KTX_NOT_FOUND,           /*!< Requested metadata key or required dynamically loaded GPU function was not found. */
     KTX_OUT_OF_MEMORY,       /*!< Not enough memory to complete the operation. */
     KTX_TRANSCODE_FAILED,    /*!< Transcoding of block compressed texture failed. */
+    KTX_ENCODE_FAILED,       /*!< Encode to block compressed texture failed. */
+    KTX_DECODE_FAILED,       /*!< Decoding from block compressed texture failed. */
     KTX_UNKNOWN_FILE_FORMAT, /*!< The file not a KTX file */
     KTX_UNSUPPORTED_TEXTURE_TYPE, /*!< The KTX file specifies an unsupported texture type. */
     KTX_UNSUPPORTED_FEATURE,  /*!< Feature not included in in-use library or not yet implemented. */
diff --git a/lib/astc_codec.cpp b/lib/astc_codec.cpp
index b27f6c86..4ebdfffd 100644
--- a/lib/astc_codec.cpp
+++ b/lib/astc_codec.cpp
@@ -785,11 +785,8 @@ ktxTexture2_CompressAstcEx(ktxTexture2* This, ktxAstcParams* params) {
             imageFree(input_image);
 
             if (work.error != ASTCENC_SUCCESS) {
-                std::cout << "ASTC compressor failed\n" <<
-                             astcenc_get_error_string(work.error) << std::endl;
-
                 astcenc_context_free(astc_context);
-                return KTX_INVALID_OPERATION;
+                return KTX_ENCODE_FAILED;
             }
         }
     }
@@ -1077,10 +1074,8 @@ ktxTexture2_DecodeAstc(ktxTexture2 *This, ktx_uint32_t vkformat) {
                     astcenc_decompress_reset(astc_context);
 
                     if (work.error != ASTCENC_SUCCESS) {
-                        std::cout << "ASTC decompressor failed\n" << astcenc_get_error_string(work.error) << std::endl;
-
                         astcenc_context_free(astc_context);
-                        return KTX_INVALID_OPERATION;
+                        return KTX_DECODE_FAILED;
                     }
                 }
             }