diff --git a/src/kits/shared/ExpressionParser.cpp b/src/kits/shared/ExpressionParser.cpp
index e0cea8dc2a..c239ad4f3e 100644
--- a/src/kits/shared/ExpressionParser.cpp
+++ b/src/kits/shared/ExpressionParser.cpp
@@ -604,10 +604,10 @@ ExpressionParser::_ParseFunction(const Token& token)
 	} else if (strcasecmp("floor", token.string.String()) == 0) {
 		_InitArguments(values, 1);
 		return values[0].floor();
-	} else if (strcasecmp("log", token.string.String()) == 0) {
+	} else if (strcasecmp("ln", token.string.String()) == 0) {
 		_InitArguments(values, 1);
 		return values[0].log();
-	} else if (strcasecmp("log10", token.string.String()) == 0) {
+	} else if (strcasecmp("log", token.string.String()) == 0) {
 		_InitArguments(values, 1);
 		return values[0].log10();
 	} else if (strcasecmp("pow", token.string.String()) == 0) {