diff --git a/14-checkpoint/Makefile b/14-checkpoint/Makefile
index 5ff0d03..37e7ec9 100644
--- a/14-checkpoint/Makefile
+++ b/14-checkpoint/Makefile
@@ -28,7 +28,7 @@ run: os-image.bin
 
 # Open the connection to qemu and load our kernel-object file with symbols
 debug: os-image.bin kernel.elf
-	qemu-system-i386 -s -fda os-image.bin &
+	qemu-system-i386 -s -S -fda os-image.bin &
 	${GDB} -ex "target remote localhost:1234" -ex "symbol-file kernel.elf"
 
 # Generic rules for wildcards
diff --git a/15-video-ports/Makefile b/15-video-ports/Makefile
index 5ff0d03..37e7ec9 100644
--- a/15-video-ports/Makefile
+++ b/15-video-ports/Makefile
@@ -28,7 +28,7 @@ run: os-image.bin
 
 # Open the connection to qemu and load our kernel-object file with symbols
 debug: os-image.bin kernel.elf
-	qemu-system-i386 -s -fda os-image.bin &
+	qemu-system-i386 -s -S -fda os-image.bin &
 	${GDB} -ex "target remote localhost:1234" -ex "symbol-file kernel.elf"
 
 # Generic rules for wildcards
diff --git a/16-video-driver/Makefile b/16-video-driver/Makefile
index 5ff0d03..37e7ec9 100644
--- a/16-video-driver/Makefile
+++ b/16-video-driver/Makefile
@@ -28,7 +28,7 @@ run: os-image.bin
 
 # Open the connection to qemu and load our kernel-object file with symbols
 debug: os-image.bin kernel.elf
-	qemu-system-i386 -s -fda os-image.bin &
+	qemu-system-i386 -s -S -fda os-image.bin &
 	${GDB} -ex "target remote localhost:1234" -ex "symbol-file kernel.elf"
 
 # Generic rules for wildcards
diff --git a/17-video-scroll/Makefile b/17-video-scroll/Makefile
index 5ff0d03..37e7ec9 100644
--- a/17-video-scroll/Makefile
+++ b/17-video-scroll/Makefile
@@ -28,7 +28,7 @@ run: os-image.bin
 
 # Open the connection to qemu and load our kernel-object file with symbols
 debug: os-image.bin kernel.elf
-	qemu-system-i386 -s -fda os-image.bin &
+	qemu-system-i386 -s -S -fda os-image.bin &
 	${GDB} -ex "target remote localhost:1234" -ex "symbol-file kernel.elf"
 
 # Generic rules for wildcards
diff --git a/18-interrupts/Makefile b/18-interrupts/Makefile
index fd48e28..deccb84 100644
--- a/18-interrupts/Makefile
+++ b/18-interrupts/Makefile
@@ -28,7 +28,7 @@ run: os-image.bin
 
 # Open the connection to qemu and load our kernel-object file with symbols
 debug: os-image.bin kernel.elf
-	qemu-system-i386 -s -fda os-image.bin -d guest_errors,int &
+	qemu-system-i386 -s -S -fda os-image.bin -d guest_errors,int &
 	${GDB} -ex "target remote localhost:1234" -ex "symbol-file kernel.elf"
 
 # Generic rules for wildcards
diff --git a/19-interrupts-irqs/Makefile b/19-interrupts-irqs/Makefile
index fd48e28..deccb84 100644
--- a/19-interrupts-irqs/Makefile
+++ b/19-interrupts-irqs/Makefile
@@ -28,7 +28,7 @@ run: os-image.bin
 
 # Open the connection to qemu and load our kernel-object file with symbols
 debug: os-image.bin kernel.elf
-	qemu-system-i386 -s -fda os-image.bin -d guest_errors,int &
+	qemu-system-i386 -s -S -fda os-image.bin -d guest_errors,int &
 	${GDB} -ex "target remote localhost:1234" -ex "symbol-file kernel.elf"
 
 # Generic rules for wildcards
diff --git a/20-interrupts-timer/Makefile b/20-interrupts-timer/Makefile
index d1922a7..30c4edb 100644
--- a/20-interrupts-timer/Makefile
+++ b/20-interrupts-timer/Makefile
@@ -28,7 +28,7 @@ run: os-image.bin
 
 # Open the connection to qemu and load our kernel-object file with symbols
 debug: os-image.bin kernel.elf
-	qemu-system-i386 -s -fda os-image.bin -d guest_errors,int &
+	qemu-system-i386 -s -S -fda os-image.bin -d guest_errors,int &
 	${GDB} -ex "target remote localhost:1234" -ex "symbol-file kernel.elf"
 
 # Generic rules for wildcards
diff --git a/21-shell/Makefile b/21-shell/Makefile
index 23e9d9a..380bed4 100644
--- a/21-shell/Makefile
+++ b/21-shell/Makefile
@@ -29,7 +29,7 @@ run: os-image.bin
 
 # Open the connection to qemu and load our kernel-object file with symbols
 debug: os-image.bin kernel.elf
-	qemu-system-i386 -s -fda os-image.bin -d guest_errors,int &
+	qemu-system-i386 -s -S -fda os-image.bin -d guest_errors,int &
 	${GDB} -ex "target remote localhost:1234" -ex "symbol-file kernel.elf"
 
 # Generic rules for wildcards
diff --git a/22-malloc/Makefile b/22-malloc/Makefile
index 23e9d9a..380bed4 100644
--- a/22-malloc/Makefile
+++ b/22-malloc/Makefile
@@ -29,7 +29,7 @@ run: os-image.bin
 
 # Open the connection to qemu and load our kernel-object file with symbols
 debug: os-image.bin kernel.elf
-	qemu-system-i386 -s -fda os-image.bin -d guest_errors,int &
+	qemu-system-i386 -s -S -fda os-image.bin -d guest_errors,int &
 	${GDB} -ex "target remote localhost:1234" -ex "symbol-file kernel.elf"
 
 # Generic rules for wildcards
diff --git a/23-fixes/Makefile b/23-fixes/Makefile
index a678f60..53fdedf 100644
--- a/23-fixes/Makefile
+++ b/23-fixes/Makefile
@@ -28,7 +28,7 @@ run: os-image.bin
 
 # Open the connection to qemu and load our kernel-object file with symbols
 debug: os-image.bin kernel.elf
-	qemu-system-i386 -s -fda os-image.bin -d guest_errors,int &
+	qemu-system-i386 -s -S -fda os-image.bin -d guest_errors,int &
 	${GDB} -ex "target remote localhost:1234" -ex "symbol-file kernel.elf"
 
 # Generic rules for wildcards