diff --git a/org.lflang/src/lib/c/reactor-c b/org.lflang/src/lib/c/reactor-c
index 4f78b42ac8..158be58c62 160000
--- a/org.lflang/src/lib/c/reactor-c
+++ b/org.lflang/src/lib/c/reactor-c
@@ -1 +1 @@
-Subproject commit 4f78b42ac806c113aed0ecd6510e56a20c049b61
+Subproject commit 158be58c625ce8378be9e3a5a5f6414cab946dfe
diff --git a/org.lflang/src/org/lflang/generator/c/CCmakeGenerator.java b/org.lflang/src/org/lflang/generator/c/CCmakeGenerator.java
index 3e220e5ad6..f5e7187233 100644
--- a/org.lflang/src/org/lflang/generator/c/CCmakeGenerator.java
+++ b/org.lflang/src/org/lflang/generator/c/CCmakeGenerator.java
@@ -194,11 +194,6 @@ CodeBuilder generateCMakeCode(
         if (targetConfig.platformOptions.platform != Platform.AUTO) {
             cMakeCode.pr("set(CMAKE_SYSTEM_NAME "+targetConfig.platformOptions.platform.getcMakeName()+")");
         }
-
-        cMakeCode.pr("# Target definitions\n");
-        targetConfig.compileDefinitions.forEach((key, value) -> cMakeCode.pr(
-            "add_compile_definitions("+key+"="+value+")\n"
-        ));
         cMakeCode.newLine();
 
         if (targetConfig.platformOptions.platform == Platform.ZEPHYR) {