diff --git a/src/asm/warning.cpp b/src/asm/warning.cpp
index 41cde1c0..9640d756 100644
--- a/src/asm/warning.cpp
+++ b/src/asm/warning.cpp
@@ -171,6 +171,8 @@ void warning(WarningID id, char const *fmt, ...) {
 
 	case WarningBehavior::ERROR:
 		printDiag(fmt, args, "error", STYLE_RED, "[-Werror=%s]", flag);
+
+		incrementErrors();
 		break;
 	}
 
diff --git a/test/asm/warn-truncation.err b/test/asm/warn-truncation.err
index faf30a1d..f5742e21 100644
--- a/test/asm/warn-truncation.err
+++ b/test/asm/warn-truncation.err
@@ -54,3 +54,4 @@ error: Expression must be 8-bit; use `LOW()` to force 8-bit [-Werror=truncation]
     at warn-truncation.asm::try(30) <- warn-truncation.asm(40)
 error: Expression must be 16-bit [-Werror=truncation]
     at warn-truncation.asm::try(31) <- warn-truncation.asm(40)
+Assembly aborted with 12 errors
diff --git a/test/asm/warning-as-error.err b/test/asm/warning-as-error.err
index 2c0f5433..d06b190a 100644
--- a/test/asm/warning-as-error.err
+++ b/test/asm/warning-as-error.err
@@ -8,3 +8,4 @@ error: warning or error? [-Werror=user]
     at warning-as-error.asm::test(5) <- warning-as-error.asm(11)
 warning: warning or error? [-Wuser]
     at warning-as-error.asm::test(5) <- warning-as-error.asm(14)
+Assembly aborted with 2 errors