diff --git a/src/core/sal/bochs/CompressState.ah b/src/core/sal/bochs/CompressState.ah
index fea61576..01c46f7e 100644
--- a/src/core/sal/bochs/CompressState.ah
+++ b/src/core/sal/bochs/CompressState.ah
@@ -74,7 +74,7 @@ aspect CompressState {
 		} while (remaining);
 		gzclose(f);
 
-		return (cbuf - (char *)ptr) / size;
+		return (cbuf - (const char *)ptr) / size;
 	}
 };
 
diff --git a/tools/convert-trace/Gem5Converter.cc b/tools/convert-trace/Gem5Converter.cc
index 0a4e16f7..b5e804c9 100644
--- a/tools/convert-trace/Gem5Converter.cc
+++ b/tools/convert-trace/Gem5Converter.cc
@@ -43,7 +43,7 @@ bool Gem5Converter::convert()
 		   >> dummy >> dummy >> dec >> access_width
 		   >> dummy >> dummy >> hex >> access_address;
 		if (!ss) {
-			if (ifetch_seen && !access_type.c_str()[0] == '0') {
+			if (ifetch_seen && access_type.c_str()[0] != '0') {
 				LOG << "input mismatch, input = " << buf << endl;
 			}
 			continue;