diff --git a/sch2fig/Makefile b/sch2fig/Makefile
index a4a041c..5af7077 100644
--- a/sch2fig/Makefile
+++ b/sch2fig/Makefile
@@ -13,7 +13,7 @@
 NAME = sch2fig
 OBJS = main.o sch.o lib.o fig.o text.o misc.o
 
-CFLAGS = -g -Wall -Wextra -Wno-unused-parameter
+CFLAGS = -g -Wall -Wextra -Wno-unused-parameter -Wshadow
 LIBS = -lm
 
 include ../common/Makefile.c-common
diff --git a/sch2fig/lib.c b/sch2fig/lib.c
index b5e480a..a1cdaae 100644
--- a/sch2fig/lib.c
+++ b/sch2fig/lib.c
@@ -101,7 +101,7 @@ struct comp {
 
 
 static struct comp *comps = NULL;
-static struct comp *comp; /* current component */
+static struct comp *curr_comp; /* current component */
 static struct comp **next_comp = &comps;
 static struct obj **next_obj;
 
@@ -301,22 +301,22 @@ static bool parse_def(const char *line)
 	    &s, &name_offset, &draw_num, &draw_name) != 4)
 		return 0;
 
-	comp = alloc_type(struct comp);
+	curr_comp = alloc_type(struct comp);
 	if (*s == '~')
 		s++;
-	comp->name = s;
+	curr_comp->name = s;
 
-	comp->visible = 0;
-	comp->show_pin_name = draw_name == 'Y';
-	comp->show_pin_num = draw_num == 'Y';
-	comp->name_offset = name_offset;
+	curr_comp->visible = 0;
+	curr_comp->show_pin_name = draw_name == 'Y';
+	curr_comp->show_pin_num = draw_num == 'Y';
+	curr_comp->name_offset = name_offset;
 
-	comp->objs = NULL;
-	next_obj = &comp->objs;
+	curr_comp->objs = NULL;
+	next_obj = &curr_comp->objs;
 
-	comp->next = NULL;
-	*next_comp = comp;
-	next_comp = &comp->next;
+	curr_comp->next = NULL;
+	*next_comp = curr_comp;
+	next_comp = &curr_comp->next;
 
 	return 1;
 }
@@ -352,7 +352,7 @@ bool lib_parse(struct lib_ctx *ctx, const char *line)
 		    || sscanf(line, "F%d \"%*[^\"]\" %*d %*d %*d %*c %c",
 		    &n, &vis) == 2) {
 			if (vis == 'V')
-				comp->visible |= 1 << n;
+				curr_comp->visible |= 1 << n;
 			return 1;
 		}
 		/* @@@ explicitly ignore FPLIST */