diff --git a/storm/Error.cpp b/storm/Error.cpp
index c7127af..e984f71 100644
--- a/storm/Error.cpp
+++ b/storm/Error.cpp
@@ -8,7 +8,7 @@
 #endif
 
 static uint32_t s_lasterror = ERROR_SUCCESS;
-static uint32_t s_suppress;
+static int32_t s_suppress;
 
 [[noreturn]] void STORMCDECL SErrDisplayAppFatal(const char* format, ...) {
     va_list args;
@@ -87,6 +87,6 @@ uint32_t STORMAPI SErrGetLastError() {
     return s_lasterror;
 }
 
-void STORMAPI SErrSuppressErrors(uint32_t suppress) {
+void STORMAPI SErrSuppressErrors(int32_t suppress) {
     s_suppress = suppress;
 }
diff --git a/storm/Error.hpp b/storm/Error.hpp
index 7ba74fb..7f0d6da 100644
--- a/storm/Error.hpp
+++ b/storm/Error.hpp
@@ -28,6 +28,6 @@ void STORMAPI SErrSetLastError(uint32_t errorcode);
 
 uint32_t STORMAPI SErrGetLastError();
 
-void STORMAPI SErrSuppressErrors(uint32_t suppress);
+void STORMAPI SErrSuppressErrors(int32_t suppress);
 
 #endif
diff --git a/test/stormdll/stormstubs.cpp b/test/stormdll/stormstubs.cpp
index 252248a..aa0bfc4 100644
--- a/test/stormdll/stormstubs.cpp
+++ b/test/stormdll/stormstubs.cpp
@@ -41,7 +41,7 @@ int32_t STORMCDECL SErrDisplayErrorFmt(uint32_t, const char*, int32_t, int32_t,
 void STORMAPI SErrPrepareAppFatal(const char*, int32_t) {}
 void STORMAPI SErrSetLastError(uint32_t) {}
 uint32_t STORMAPI SErrGetLastError() { return 0; }
-void STORMAPI SErrSuppressErrors(uint32_t) {}
+void STORMAPI SErrSuppressErrors(int32_t) {}
 
 #include <storm/Event.hpp>