diff --git a/src/test/util_tests.cpp b/src/test/util_tests.cpp
--- a/src/test/util_tests.cpp
+++ b/src/test/util_tests.cpp
@@ -1448,6 +1448,12 @@
     BOOST_CHECK(ParseMoney("0.00000001", ret));
     BOOST_CHECK_EQUAL(ret, COIN / 100000000);
 
+    // Parsing amount that can not be represented in ret should fail
+    BOOST_CHECK(!ParseMoney("0.000000001", ret));
+
+    // Parsing empty string should fail
+    BOOST_CHECK(!ParseMoney("", ret));
+
     // Attempted 63 bit overflow should fail
     BOOST_CHECK(!ParseMoney("92233720368.54775808", ret));
 
diff --git a/src/util/moneystr.h b/src/util/moneystr.h
--- a/src/util/moneystr.h
+++ b/src/util/moneystr.h
@@ -19,7 +19,10 @@
  * JSON but use AmountFromValue and ValueFromAmount for that.
  */
 std::string FormatMoney(const Amount n);
+/**
+ * Parse an amount denoted in full coins. E.g. "0.0034" supplied on the command
+ * line.
+ **/
 NODISCARD bool ParseMoney(const std::string &str, Amount &nRet);
-NODISCARD bool ParseMoney(const char *pszIn, Amount &nRet);
 
 #endif // BITCOIN_UTIL_MONEYSTR_H
diff --git a/src/util/moneystr.cpp b/src/util/moneystr.cpp
--- a/src/util/moneystr.cpp
+++ b/src/util/moneystr.cpp
@@ -35,13 +35,14 @@
     if (!ValidAsCString(str)) {
         return false;
     }
-    return ParseMoney(str.c_str(), nRet);
-}
 
-bool ParseMoney(const char *pszIn, Amount &nRet) {
+    if (str.empty()) {
+        return false;
+    }
+
     std::string strWhole;
     Amount nUnits = Amount::zero();
-    const char *p = pszIn;
+    const char *p = str.c_str();
     while (IsSpace(*p)) {
         p++;
     }