diff --git a/solidity_contracts/compile_tools/compile_solidity_contract.sh b/solidity_contracts/compile_tools/compile_solidity_contract.sh
index 2ef8942..180f77d 100755
--- a/solidity_contracts/compile_tools/compile_solidity_contract.sh
+++ b/solidity_contracts/compile_tools/compile_solidity_contract.sh
@@ -31,7 +31,51 @@ set -o pipefail
 # 3 solcjs --starndard-json has some bugs (https://github.com/ethereum/solc-js/issues/460) so we can only use "content" as input.
 # 4 To copy the source code into the json file, we have to escape \\ \" \t \n. (Ignore \b \r \f as we shouldn't have them in sol file)
 tmpfile=$(mktemp)
-cat "$SOLIDITY_SOURCE_FILE_PATH" \
+awk 'BEGIN {
+        found=0;
+    }
+
+    {
+        spos=index($0,"/*");
+        epos=index($0,"*/");
+
+        if(spos > 0 && epos ==0)
+        {
+            printf("%s\n",substr($0,1,spos-1));
+            found=1;
+        }
+        else if(spos == 0 && epos >0)
+        {
+            found=0;
+            if(length($0) != epos+1)
+            {
+                printf("%s\n",substr($0,epos+2));
+            }
+        }
+        else if(spos > 0 && epos > 0)
+        {
+            printf("%s %s\n",substr($0,1,spos-1),substr($0,epos+2));
+        }
+        else if(found==0)
+        {
+            cpp_comment=index($0,"//");
+            if(cpp_comment == 0)
+            {
+                print;
+            }
+            else
+            {
+                printf("%s\n",substr($0,1,cpp_comment-1));
+            }
+        }
+    }
+
+    END {
+        if(found==1)
+        {
+            print "there is unmatched comment"
+        }
+    }' "$SOLIDITY_SOURCE_FILE_PATH" \
 | awk -v token="__CONTRACT_CONTENT" '
     BEGIN {
         RS = "\0"   # Set record separator to null to read the whole input