diff --git a/platforms/aix_ppc64.xml b/platforms/aix_ppc64.xml
index 15062d6da..3abf639e6 100644
--- a/platforms/aix_ppc64.xml
+++ b/platforms/aix_ppc64.xml
@@ -3,6 +3,7 @@
   <char_bit>8</char_bit>
   <default-sign>unsigned</default-sign>
   <sizeof>
+    <bool>1</bool>
     <short>2</short>
     <int>4</int>
     <long>8</long>
diff --git a/platforms/arm32-wchar_t2.xml b/platforms/arm32-wchar_t2.xml
index 21e6d54c6..218a08cc1 100644
--- a/platforms/arm32-wchar_t2.xml
+++ b/platforms/arm32-wchar_t2.xml
@@ -3,6 +3,7 @@
   <char_bit>8</char_bit>
   <default-sign>unsigned</default-sign>
   <sizeof>
+    <bool>1</bool>
     <short>2</short>
     <int>4</int>
     <long>4</long>
diff --git a/platforms/arm32-wchar_t4.xml b/platforms/arm32-wchar_t4.xml
index 3aefa7ba5..6a7d2e38d 100644
--- a/platforms/arm32-wchar_t4.xml
+++ b/platforms/arm32-wchar_t4.xml
@@ -3,6 +3,7 @@
   <char_bit>8</char_bit>
   <default-sign>unsigned</default-sign>
   <sizeof>
+    <bool>1</bool>
     <short>2</short>
     <int>4</int>
     <long>4</long>
diff --git a/platforms/arm64-wchar_t2.xml b/platforms/arm64-wchar_t2.xml
index 7f2ce2d9e..2b0cff498 100644
--- a/platforms/arm64-wchar_t2.xml
+++ b/platforms/arm64-wchar_t2.xml
@@ -3,6 +3,7 @@
   <char_bit>8</char_bit>
   <default-sign>unsigned</default-sign>
   <sizeof>
+    <bool>1</bool>
     <short>2</short>
     <int>4</int>
     <long>4</long>
diff --git a/platforms/arm64-wchar_t4.xml b/platforms/arm64-wchar_t4.xml
index 94bb97233..35183bb08 100644
--- a/platforms/arm64-wchar_t4.xml
+++ b/platforms/arm64-wchar_t4.xml
@@ -3,6 +3,7 @@
   <char_bit>8</char_bit>
   <default-sign>unsigned</default-sign>
   <sizeof>
+    <bool>1</bool>
     <short>2</short>
     <int>4</int>
     <long>4</long>
diff --git a/platforms/cppcheck-platforms.rng b/platforms/cppcheck-platforms.rng
index 642ada198..a0c99247c 100644
--- a/platforms/cppcheck-platforms.rng
+++ b/platforms/cppcheck-platforms.rng
@@ -9,43 +9,39 @@
 				<data type="NCName"/>
 			</element>
 			<element name="sizeof">
-				<zeroOrMore>
-					<choice>
-						<element name="bool">
-							<data type="integer"/>
-						</element>
-						<element name="short">
-							<data type="integer"/>
-						</element>
-						<element name="int">
-							<data type="integer"/>
-						</element>
-						<element name="long">
-							<data type="integer"/>
-						</element>
-						<element name="long-long">
-							<data type="integer"/>
-						</element>
-						<element name="float">
-							<data type="integer"/>
-						</element>
-						<element name="double">
-							<data type="integer"/>
-						</element>
-						<element name="long-double">
-							<data type="integer"/>
-						</element>
-						<element name="pointer">
-							<data type="integer"/>
-						</element>
-						<element name="size_t">
-							<data type="integer"/>
-						</element>
-						<element name="wchar_t">
-							<data type="integer"/>
-						</element>
-					</choice>
-				</zeroOrMore>
+				<element name="bool">
+					<data type="integer"/>
+				</element>
+				<element name="short">
+					<data type="integer"/>
+				</element>
+				<element name="int">
+					<data type="integer"/>
+				</element>
+				<element name="long">
+					<data type="integer"/>
+				</element>
+				<element name="long-long">
+					<data type="integer"/>
+				</element>
+				<element name="float">
+					<data type="integer"/>
+				</element>
+				<element name="double">
+					<data type="integer"/>
+				</element>
+				<element name="long-double">
+					<data type="integer"/>
+				</element>
+				<element name="pointer">
+					<data type="integer"/>
+				</element>
+				<element name="size_t">
+					<data type="integer"/>
+				</element>
+				<element name="wchar_t">
+					<data type="integer"/>
+				</element>
 			</element>
 		</element>
 	</start>
diff --git a/platforms/cray_sv1.xml b/platforms/cray_sv1.xml
index 478f4afaf..1c26bc21d 100644
--- a/platforms/cray_sv1.xml
+++ b/platforms/cray_sv1.xml
@@ -3,6 +3,7 @@
   <char_bit>8</char_bit>
   <default-sign>unsigned</default-sign>
   <sizeof>
+    <bool>1</bool>
     <short>2</short>
     <int>8</int>
     <long>8</long>
diff --git a/platforms/msp430_eabi_large_datamodel.xml b/platforms/msp430_eabi_large_datamodel.xml
index 0f632de11..18465323e 100644
--- a/platforms/msp430_eabi_large_datamodel.xml
+++ b/platforms/msp430_eabi_large_datamodel.xml
@@ -3,6 +3,7 @@
   <char_bit>8</char_bit>
   <default-sign>signed</default-sign>
   <sizeof>
+    <bool>1</bool>
     <short>2</short>
     <int>2</int>
     <long>4</long>
diff --git a/platforms/unix32-unsigned.xml b/platforms/unix32-unsigned.xml
index bc4ca0e89..b2a56502e 100644
--- a/platforms/unix32-unsigned.xml
+++ b/platforms/unix32-unsigned.xml
@@ -3,6 +3,7 @@
   <char_bit>8</char_bit>
   <default-sign>unsigned</default-sign>
   <sizeof>
+    <bool>1</bool>
     <short>2</short>
     <int>4</int>
     <long>4</long>
diff --git a/platforms/unix64-unsigned.xml b/platforms/unix64-unsigned.xml
index 21d97b611..818c28415 100644
--- a/platforms/unix64-unsigned.xml
+++ b/platforms/unix64-unsigned.xml
@@ -3,6 +3,7 @@
   <char_bit>8</char_bit>
   <default-sign>unsigned</default-sign>
   <sizeof>
+    <bool>1</bool>
     <short>2</short>
     <int>4</int>
     <long>8</long>