diff --git a/Makefile b/Makefile
index efeb138de..6bedab14a 100644
--- a/Makefile
+++ b/Makefile
@@ -50,7 +50,7 @@ CFLAGS  += -Wall -Werror -fdiagnostics-color=auto
 LDFLAGS += -L$(BUILDDIR)
 
 # Some tools
-PKGCONFIG := PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:/usr/lib/pkgconfig:$(PKG_CONFIG_PATH) pkg-config
+PKGCONFIG := PKG_CONFIG_PATH=/usr/local/lib64/pkgconfig:/usr/local/lib/pkgconfig:/usr/lib/pkgconfig:$(PKG_CONFIG_PATH) pkg-config
 SHELL := bash
 
 # We must compile without optimizations for gcov!
diff --git a/lib/log_table.c b/lib/log_table.c
index 509368bbb..446105fef 100644
--- a/lib/log_table.c
+++ b/lib/log_table.c
@@ -102,9 +102,9 @@ void table_header(struct table *t)
 		free(col);
 	}
 
-	stats(line0);
-	stats(line1);
-	stats(line2);
+	stats("%s", line0);
+	stats("%s", line1);
+	stats("%s", line2);
 	
 	free(line0);
 	free(line1);
@@ -142,7 +142,7 @@ void table_row(struct table *t, ...)
 
 	va_end(args);
 	
-	stats(line);
+	stats("%s", line);
 	free(line);
 }
 
@@ -165,6 +165,6 @@ void table_footer(struct table *t)
 			strcatf(&line, "%s", BOX_ULR);
 	}
 	
-	stats(line);
+	stats("%s", line);
 	free(line);
-}
\ No newline at end of file
+}
diff --git a/lib/nodes/ngsi.c b/lib/nodes/ngsi.c
index e642c7f27..77bc27894 100644
--- a/lib/nodes/ngsi.c
+++ b/lib/nodes/ngsi.c
@@ -241,7 +241,7 @@ static int ngsi_parse_mapping(struct list *mapping, config_setting_t *cfg)
 			.name = "index",
 			.type = "integer"
 		};
-		asprintf(&i.value, "%u", j);
+		assert(asprintf(&i.value, "%u", j));
 
 		list_push(&a->metadata, memdup(&s, sizeof(s)));
 		list_push(&a->metadata, memdup(&i, sizeof(i)));