diff --git a/src/main/msp/msp.c b/src/main/msp/msp.c
index df8e717cb9..38d5d126ba 100644
--- a/src/main/msp/msp.c
+++ b/src/main/msp/msp.c
@@ -4147,7 +4147,7 @@ static mspResult_e mspProcessInCommand(mspDescriptor_t srcDesc, int16_t cmdMSP,
             }
 
             const unsigned textLength = MIN(textSpace, sbufReadU8(src));
-            memset(textVar, 0, strlen(textVar));
+            textVar[textLength] = '\0';
             sbufReadData(src, textVar, textLength);
 
 #ifdef USE_OSD