diff --git a/07-extra-blanks.c b/07-extra-blanks.c
new file mode 100644
index 0000000..e875e6d
--- /dev/null
+++ b/07-extra-blanks.c
@@ -0,0 +1,16 @@
+#include <stdio.h>
+
+int main()
+{
+	int c;
+	int l;
+
+	while ((c = getchar()) != EOF) {
+		if (c == ' ' && c == l) {
+			;
+		} else {
+			printf("%c", c);
+			l = c;
+		}
+	}
+}
diff --git a/Makefile b/Makefile
index 7e067df..babb6b7 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-all: hello mathvars c2f input count countlines
+all: hello mathvars c2f input count countlines blanks
 
 hello: 01-hello-world.c
 	gcc -o ./bin/01-helloworld 01-hello-world.c
@@ -18,5 +18,8 @@ count: 05-char-counting.c
 countlines: 06-line-count.c
 	gcc -o ./bin/06-line-count 06-line-count.c
 
+blanks: 07-extra-blanks.c
+	gcc -o ./bin/07-extra-blanks 07-extra-blanks.c
+
 clean:
 	$(RM) ./bin/*-*