diff --git a/logd/LogKlog.cpp b/logd/LogKlog.cpp
index 062ffb2..7d14648 100644
--- a/logd/LogKlog.cpp
+++ b/logd/LogKlog.cpp
@@ -83,7 +83,7 @@
 #define LESS_THAN_SIG      SIGNATURE_MASK
 #define OPEN_BRACKET_SIG   ((SIGNATURE_MASK << 1) & SIGNATURE_MASK)
 // space is one more than <digit> of 9
-#define OPEN_BRACKET_SPACE (OPEN_BRACKET_SIG | 10)
+#define OPEN_BRACKET_SPACE ((char)(OPEN_BRACKET_SIG | 10))
 
 char *log_strtok_r(char *s, char **last) {
     if (!s) {