diff --git a/src/dump_fts.c b/src/dump_fts.c
index 932fc24..20abd24 100644
--- a/src/dump_fts.c
+++ b/src/dump_fts.c
@@ -408,8 +408,8 @@ static int process_opt(void *context, int ch, char *optarg)
 		break;
 	case 1:
 		node_name_map_file = strdup(optarg);
-                if (node_name_map_file == NULL)
-                        IBEXIT("out of memory, strdup for node_name_map_file name failed");
+		if (node_name_map_file == NULL)
+			IBEXIT("out of memory, strdup for node_name_map_file name failed");
 		break;
 	default:
 		return -1;
diff --git a/src/iblinkinfo.c b/src/iblinkinfo.c
index 384d489..deccb09 100644
--- a/src/iblinkinfo.c
+++ b/src/iblinkinfo.c
@@ -512,8 +512,8 @@ static int process_opt(void *context, int ch, char *optarg)
 	switch (ch) {
 	case 1:
 		node_name_map_file = strdup(optarg);
-                if (node_name_map_file == NULL)
-                        IBEXIT("out of memory, strdup for node_name_map_file name failed");
+		if (node_name_map_file == NULL)
+			IBEXIT("out of memory, strdup for node_name_map_file name failed");
 		break;
 	case 2:
 		load_cache_file = strdup(optarg);
diff --git a/src/ibnetdiscover.c b/src/ibnetdiscover.c
index ef0d7a0..0eef703 100644
--- a/src/ibnetdiscover.c
+++ b/src/ibnetdiscover.c
@@ -995,8 +995,8 @@ static int process_opt(void *context, int ch, char *optarg)
 	switch (ch) {
 	case 1:
 		node_name_map_file = strdup(optarg);
-                if (node_name_map_file == NULL)
-                        IBEXIT("out of memory, strdup for node_name_map_file name failed");
+		if (node_name_map_file == NULL)
+			IBEXIT("out of memory, strdup for node_name_map_file name failed");
 		break;
 	case 2:
 		cache_file = strdup(optarg);
diff --git a/src/ibqueryerrors.c b/src/ibqueryerrors.c
index 5e49522..43b062a 100644
--- a/src/ibqueryerrors.c
+++ b/src/ibqueryerrors.c
@@ -909,8 +909,8 @@ static int process_opt(void *context, int ch, char *optarg)
 		break;
 	case 1:
 		node_name_map_file = strdup(optarg);
-                if (node_name_map_file == NULL)
-                        IBEXIT("out of memory, strdup for node_name_map_file name failed");
+		if (node_name_map_file == NULL)
+			IBEXIT("out of memory, strdup for node_name_map_file name failed");
 		break;
 	case 2:
 		data_counters++;
diff --git a/src/ibroute.c b/src/ibroute.c
index 8c165e6..2514073 100644
--- a/src/ibroute.c
+++ b/src/ibroute.c
@@ -408,8 +408,8 @@ static int process_opt(void *context, int ch, char *optarg)
 		break;
 	case 1:
 		node_name_map_file = strdup(optarg);
-                if (node_name_map_file == NULL)
-                        IBEXIT("out of memory, strdup for node_name_map_file name failed");
+		if (node_name_map_file == NULL)
+			IBEXIT("out of memory, strdup for node_name_map_file name failed");
 		break;
 	default:
 		return -1;
diff --git a/src/ibtracert.c b/src/ibtracert.c
index 86816bf..1baeb5b 100644
--- a/src/ibtracert.c
+++ b/src/ibtracert.c
@@ -759,8 +759,8 @@ static int process_opt(void *context, int ch, char *optarg)
 	switch (ch) {
 	case 1:
 		node_name_map_file = strdup(optarg);
-                if (node_name_map_file == NULL)
-                        IBEXIT("out of memory, strdup for node_name_map_file name failed");
+		if (node_name_map_file == NULL)
+			IBEXIT("out of memory, strdup for node_name_map_file name failed");
 		break;
 	case 'm':
 		multicast++;
diff --git a/src/saquery.c b/src/saquery.c
index 03fc779..1ce2f23 100644
--- a/src/saquery.c
+++ b/src/saquery.c
@@ -1555,8 +1555,8 @@ static int process_opt(void *context, int ch, char *optarg)
 		break;
 	case 3:
 		node_name_map_file = strdup(optarg);
-                if (node_name_map_file == NULL)
-                        IBEXIT("out of memory, strdup for node_name_map_file name failed");
+		if (node_name_map_file == NULL)
+			IBEXIT("out of memory, strdup for node_name_map_file name failed");
 		break;
 	case 4:
 		if (!isxdigit(*optarg) && !(optarg = getpass("SM_Key: "))) {
diff --git a/src/smpquery.c b/src/smpquery.c
index 3bcc984..37461b8 100644
--- a/src/smpquery.c
+++ b/src/smpquery.c
@@ -416,8 +416,8 @@ static int process_opt(void *context, int ch, char *optarg)
 	switch (ch) {
 	case 1:
 		node_name_map_file = strdup(optarg);
-                if (node_name_map_file == NULL)
-                        IBEXIT("out of memory, strdup for node_name_map_file name failed");
+		if (node_name_map_file == NULL)
+			IBEXIT("out of memory, strdup for node_name_map_file name failed");
 		break;
 	case 'c':
 		ibd_dest_type = IB_DEST_DRSLID;
