diff --git a/YSFGateway/GPS.cpp b/YSFGateway/GPS.cpp
index 0d12bb0..8d0012e 100644
--- a/YSFGateway/GPS.cpp
+++ b/YSFGateway/GPS.cpp
@@ -196,8 +196,8 @@ void CGPS::transmitGPS(const unsigned char* source)
 			lon_deg = b - 0x76U;               // 0 to 9
 		else if (b >= 0x6CU && b <= 0x75U)
 			lon_deg = 100U + (b - 0x6CU);      // 100 to 109
-		else if (b >= 0x16U && b <= 0x6BU)
-			lon_deg = 110U + (b - 0x16U);      // 110 to 179
+		else if (b >= 0x26U && b <= 0x6BU)
+			lon_deg = 110U + (b - 0x26U);      // 110 to 179
 		else
 			return;                            // error/unknown
 	} else if (b == 0x30U) {