diff --git a/libs/main/core/pistring.cpp b/libs/main/core/pistring.cpp
index b3338317..2d953ada 100644
--- a/libs/main/core/pistring.cpp
+++ b/libs/main/core/pistring.cpp
@@ -235,10 +235,10 @@ void PIString::appendFromChars(const char * c, int s, const char * codepage) {
 	memset(&state, 0, sizeof(state));
 	const char ** pc;
 	if (s > 0) {
-		const char c_ [s+1];
+		char c_ [s+1];
 		memcpy(c_, c, s);
 		c_[s] = '\0';
-		pc = &c_;
+		pc = &((const char *)c_);
 	} else {
 		pc = &c;
 	}