diff --git a/core/mac/inc/sir_api.h b/core/mac/inc/sir_api.h
index fdf1f8763d..2105505605 100644
--- a/core/mac/inc/sir_api.h
+++ b/core/mac/inc/sir_api.h
@@ -879,7 +879,7 @@ typedef struct sSirOemDataReq {
 	uint16_t messageType;   /* eWNI_SME_OEM_DATA_REQ */
 	uint16_t messageLen;
 	struct qdf_mac_addr selfMacAddr;
-	uint8_t data_len;
+	uint32_t data_len;
 	uint8_t *data;
 } tSirOemDataReq, *tpSirOemDataReq;
 
diff --git a/core/mac/src/pe/include/lim_global.h b/core/mac/src/pe/include/lim_global.h
index 4ee0f0b113..a563601a60 100644
--- a/core/mac/src/pe/include/lim_global.h
+++ b/core/mac/src/pe/include/lim_global.h
@@ -291,7 +291,7 @@ struct tLimScanResultNode {
 /* OEM Data related structure definitions */
 typedef struct sLimMlmOemDataReq {
 	struct qdf_mac_addr selfMacAddr;
-	uint8_t data_len;
+	uint32_t data_len;
 	uint8_t *data;
 } tLimMlmOemDataReq, *tpLimMlmOemDataReq;
 
diff --git a/core/sme/inc/oem_data_api.h b/core/sme/inc/oem_data_api.h
index fcd1fee200..ecc2b90c39 100644
--- a/core/sme/inc/oem_data_api.h
+++ b/core/sme/inc/oem_data_api.h
@@ -46,7 +46,7 @@
 /* Structure for defining req sent to the PE */
 typedef struct tagOemDataReq {
 	uint8_t sessionId;
-	uint8_t data_len;
+	uint32_t data_len;
 	uint8_t *data;
 } tOemDataReq, tOemDataReqConfig;
 
diff --git a/core/wma/inc/wma_if.h b/core/wma/inc/wma_if.h
index 58b0dac039..01e7db0179 100644
--- a/core/wma/inc/wma_if.h
+++ b/core/wma/inc/wma_if.h
@@ -678,7 +678,7 @@ typedef struct {
 typedef struct {
 	struct qdf_mac_addr selfMacAddr;
 	QDF_STATUS status;
-	uint8_t data_len;
+	uint32_t data_len;
 	uint8_t *data;
 } tStartOemDataReq, *tpStartOemDataReq;