diff --git a/include/psyc/parser.h b/include/psyc/parser.h
index 4206913..317e36b 100644
--- a/include/psyc/parser.h
+++ b/include/psyc/parser.h
@@ -179,6 +179,9 @@ void psyc_initParseState2 (psycParseState *state, uint8_t flags)
 /**
  * Sets a new buffer in the parser state struct with data to be parsed.
  *
+ * This function does NOT copy the buffer. It will parse whatever is
+ * at the memory pointed to by buffer.
+ *
  * @param state Pointer to the initialized state of the parser
  * @param buffer the buffer that should be parsed now
  * @see psycString
@@ -199,6 +202,9 @@ void psyc_setParseBuffer (psycParseState *state, psycString buffer)
 /**
  * Sets a new buffer in the parser state struct with data to be parsed.
  *
+ * This function does NOT copy the buffer. It will parse whatever is
+ * at the memory pointed to by buffer.
+ *
  * @param state Pointer to the initialized state of the parser
  * @param buffer pointer to the data that should be parsed
  * @param length length of the data in bytes 
@@ -292,6 +298,8 @@ const char * psyc_getParseRemainingBuffer (psycParseState *state)
  *
  * Generalized line-based packet parser.
  *
+ * This function will never allocate heap memory.
+ *
  * @param state An initialized psycParseState
  * @param oper A pointer to a character. In case of a variable, it will
  *             be set to the operator of that variable