diff --git a/include/common/tglobal.h b/include/common/tglobal.h
index 2f0826d5da..5b1dd161cc 100644
--- a/include/common/tglobal.h
+++ b/include/common/tglobal.h
@@ -159,7 +159,7 @@ extern char buildinfo[];
 
 // lossy
 extern char     tsLossyColumns[];
-extern double   tsFPrecision;
+extern float    tsFPrecision;
 extern double   tsDPrecision;
 extern uint32_t tsMaxRange;
 extern uint32_t tsCurRange;