diff --git a/cstruct/__init__.py b/cstruct/__init__.py
index 073c41c..648f348 100644
--- a/cstruct/__init__.py
+++ b/cstruct/__init__.py
@@ -195,6 +195,7 @@ def parse_struct(st):
         # remove the comments
         st = st.replace("*/","*/\n")
         st = "  ".join(re.split("/\*.*\*/",st))
+        st = "\n".join([s.split("//")[0] for s in st.split("\n")])
         st.replace("\n", " ")
         for line_s in st.split(";"):
             line_s = line_s.strip()
diff --git a/cstruct/tests/test_cstruct.py b/cstruct/tests/test_cstruct.py
index fa6bb30..b9b5436 100644
--- a/cstruct/tests/test_cstruct.py
+++ b/cstruct/tests/test_cstruct.py
@@ -52,7 +52,7 @@ class Partition(cstruct.CStruct):
         unsigned char partition_type;
         struct Position end;
         unsigned int start_sect;    /* starting sector counting from 0 */
-        unsigned int sectors;       /* nr of sectors in partition */
+        unsigned int sectors;       // nr of sectors in partition
     """