diff --git a/openair2/GNB_APP/L1_nr_paramdef.h b/openair2/GNB_APP/L1_nr_paramdef.h
index ccff1ca995..90cd9aae29 100644
--- a/openair2/GNB_APP/L1_nr_paramdef.h
+++ b/openair2/GNB_APP/L1_nr_paramdef.h
@@ -65,7 +65,7 @@
 {CONFIG_STRING_L1_REMOTE_N_PORTC,                    NULL,      0,         uptr:NULL,           defintval:50030,           TYPE_UINT,     0},         \
 {CONFIG_STRING_L1_LOCAL_N_PORTD,                     NULL,      0,         uptr:NULL,           defintval:50031,           TYPE_UINT,     0},         \
 {CONFIG_STRING_L1_REMOTE_N_PORTD,                    NULL,      0,         uptr:NULL,           defintval:50031,           TYPE_UINT,     0},         \
-{CONFIG_STRING_L1_THREAD_POOL_SIZE,                  NULL,      0,         uptr:NULL,           defintval:4,               TYPE_UINT,     0},         \
+{CONFIG_STRING_L1_THREAD_POOL_SIZE, "Maximum number of CPU cores for L1 processing (either max HW CPU cores or this value is used)",      0,         uptr:NULL,           defintval:4,               TYPE_UINT,     0},         \
 {CONFIG_STRING_L1_OFDM_OFFSET_DIVISOR,               NULL,      0,         uptr:NULL,           defuintval:8,              TYPE_UINT,     0},         \
 {CONFIG_STRING_L1_PUCCH0_DTX_THRESHOLD,              NULL,      0,         uptr:NULL,           defintval:100,             TYPE_UINT,     0},         \
 {CONFIG_STRING_L1_PRACH_DTX_THRESHOLD,               NULL,      0,         uptr:NULL,           defintval:150,             TYPE_UINT,     0},         \